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Superconducting Thin Films For The Enhancement Of Superconducting Radio Frequency Accelerator Cavities
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Book Synopsis Superconducting Thin Films for the Enhancement of Superconducting Radio Frequency Accelerator Cavities by : Matthew C. Burton
Download or read book Superconducting Thin Films for the Enhancement of Superconducting Radio Frequency Accelerator Cavities written by Matthew C. Burton and published by . This book was released on 2017 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bulk niobium (Nb) superconducting radio frequency (SRF) cavities are currently the preferred method for acceleration of charged particles at accelerating facilities around the world. However, bulk Nb cavities have poor thermal conductance, impose material and design restrictions on other components of a particle accelerator, have low reproducibility and are approaching the fundamental material-dependent accelerating field limit of approximately 50MV/m. Since the SRF phenomena occurs at surfaces within a shallow depth of ~1 μm, a proposed solution to this problem has been to utilize thin film technology to deposit superconducting thin films on the interior of cavities to engineer the active SRF surface in order to achieve cavities with enhanced properties and performance. Two proposed thin film applications for SRF cavities are: 1) Nb thin films coated on bulk cavities made of suitable castable metals (such as copper or aluminum) and 2) multilayer films designed to increase the accelerating gradient and performance of SRF cavities. While Nb thin films on copper (Cu) cavities have been attempted in the past using DC magnetron sputtering (DCMS), such cavities have never performed at the bulk Nb level. However, new energetic condensation techniques for film deposition, such as High Power Impulse Magnetron Sputtering (HiPIMS), offer the opportunity to create suitably thick Nb films with improved density, microstructure and adhesion compared to traditional DCMS. Clearly use of such novel technique requires fundamental studies to assess surface evolution and growth modes during deposition and resulting microstructure and surface morphology and the correlation with RF superconducting properties. Here we present detailed structure-property correlative research studies done on Nb/Cu thin films and NbN- and NbTiN-based multilayers made using HiPIMS and DCMS, respectively.
Book Synopsis Superconducting NbTiN Thin Films for Superconducting Radio Frequency Accelerator Cavity Applications by :
Download or read book Superconducting NbTiN Thin Films for Superconducting Radio Frequency Accelerator Cavity Applications written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Current superconducting radio frequency technology, used in various particle accelerator facilities across the world, is reliant upon bulk niobium superconducting cavities. Due to technological advancements in the processing of bulk Nb cavities, the facilities have reached accelerating fields very close to a material-dependent limit, which is close to 50 MV/m for bulk Nb. One possible solution to improve upon this fundamental limitation was proposed a few years ago by Gurevich [Appl. Phys. Lett. 88, 012511 (2006)], consisting of the deposition of alternating thin layers of superconducting and insulating materials on the interior surface of the cavities. The use of type-II superconductors with Tc> TcNb and Hc> HcNb, (e.g., Nb3Sn, NbN, or NbTiN) could potentially greatly reduce the surface resistance (Rs) and enhance the accelerating field, if the onset of vortex penetration is increased above HcNb, thus enabling higher field gradients. Although Nb3Sn may prove superior, it is not clear that it can be grown as a suitable thin film for the proposed multilayer approach, since very high temperature is typically required for its growth, hindering achieving smooth interfaces and/or surfaces. On the other hand, since NbTiN has a smaller lower critical field (Hc1) and higher critical temperature (Tc) than Nb and increased conductivity compared to NbN, it is a promising candidate material for this new scheme. Here, the authors present experimental results correlating filmmicrostructure with superconducting properties on NbTiN thin film coupon samples while also comparing filmsgrown with targets of different stoichiometry. In conclusion, it is worth mentioning that the authors have achieved thin films with bulk-like lattice parameter and transition temperature while also achieving Hc1 values larger than bulk for films thinner than their London penetration depths.
Book Synopsis Shielding Superconductors with Thin Films as Applied to Rf Cavities for Particle Accelerators by :
Download or read book Shielding Superconductors with Thin Films as Applied to Rf Cavities for Particle Accelerators written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Determining the optimal arrangement of superconducting layers to withstand large-amplitude ac magnetic fields is important for certain applications such as superconducting radio-frequency cavities. In this paper, we evaluate the shielding potential of the superconducting-film-insulating-film-superconductor (SIS') structure, a configuration that could provide benefits in screening large ac magnetic fields. After establishing that, for high-frequency magnetic fields, flux penetration must be avoided, the superheating field of the structure is calculated in the London limit both numerically and, for thin films, analytically. For intermediate film thicknesses and realistic material parameters, we also solve numerically the Ginzburg-Landau equations. As a result, it is shown that a small enhancement of the superheating field is possible, on the order of a few percent, for the SIS' structure relative to a bulk superconductor of the film material, if the materials and thicknesses are chosen appropriately.
Book Synopsis Thin Film Approaches to the SRF Cavity Problem by : Douglas B. Beringer
Download or read book Thin Film Approaches to the SRF Cavity Problem written by Douglas B. Beringer and published by . This book was released on 2017 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superconducting Radio Frequency (SRF) cavities are responsible for the acceleration of charged particles to relativistic velocities in most modern linear accelerators, such as those employed at high-energy research facilities like Thomas Jefferson National Laboratory’s CEBAF and the LHC at CERN. Recognizing SRF as primarily a surface phenomenon enables the possibility of applying thin films to the interior surface of SRF cavities, opening a formidable tool chest of opportunities by combining and designing materials that offer greater benefit. Thus, while improvements in radio frequency cavity design and refinements in cavity processing techniques have improved accelerator performance and efficiency – 1.5 GHz bulk niobium SRF cavities have achieved accelerating gradients in excess of 35 MV/m – there exist fundamental material bounds in bulk superconductors limiting the maximally sustained accelerating field gradient (approximately 45 MV/m for Niobium) where inevitable thermodynamic breakdown occurs. With state of the art niobium based cavity design fast approaching these theoretical limits, novel material innovations must be sought in order to realize next generation SRF cavities. One proposed method to improve SRF performance is to utilize thin film superconducting-insulating-superconducting (SIS) multilayer structures to effectively magnetically screen a bulk superconducting layer such that it can operate at higher field gradients before suffering critically detrimental SRF losses. This dissertation focuses on the production and characterization of thin film superconductors for such SIS layers for radio-frequency applications.
Book Synopsis Application of Superconducting Magnesium Diboride (MgB2) in Superconducting Radio Frequency Cavities by : Teng Tan
Download or read book Application of Superconducting Magnesium Diboride (MgB2) in Superconducting Radio Frequency Cavities written by Teng Tan and published by . This book was released on 2015 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: The superconductivity in magnesium diboride (MgB2) was discovered in 2001. As a BCS superconductor, MgB2 has a record-high Tc of 39 K, high Jc of > 107 A/cm2 and no weak link behavior across the grain boundary. All these superior properties endorsed that MgB2 would have great potential in both power applications and electronic devices. In the past 15 years, MgB2 based power cables, microwave devices, and commercial MRI machines emerged and the next frontier are superconducting radio frequency (SRF) cavities. SRF cavities are one of the leading accelerator technologies. In SRF cavities, applied microwave power generates electrical fields that accelerate particle beams. Compared with other accelerator techniques, SRF cavity accelerators feature low loss, high acceleration gradients and the ability to accelerate continuous particle beams. However, current SRF cavities are made from high-purity bulk niobium and work at 2 K in superfluid helium. The construction and operational cost of SRF cavity accelerators are very expensive. The demand for SRF cavity accelerators has been growing rapidly in the past decade. Therefore, a lot of effort has been devoted to the enhancement of the performance and the reduction of cost of SRF cavities. In 2010, an acceleration gradient of over 50 MV/m has been reported for a Nb-based SRF cavity. The magnetic field at the inner surface of such a cavity is ~ 1700 Oe, which is close to the thermodynamic critical field of Nb. Therefore, new materials and technologies are required to raise the acceleration gradient of future SRF cavity accelerators. Among all the proposed approaches, using MgB2 thin films to coat the inner surface of SRF cavities is one of the promising tactics with the potential to raise both the acceleration gradient and the operation temperature of SRF cavity accelerators. In this work, I present my study on MgB2 thin films for their application in SRF cavities. C-epitaxial MgB2 thin films grown on SiC(0001) substrates showed Tc > 41 K and Jc > 107 A/cm2, which is superior to bulk MgB2 samples. Polycrystalline MgB2 thin films grown on metal substrates showed similar Tc and Jc compared with bulk samples, indicating MgB2 is suitable for coating a metal cavity. Large c-pitaxial MgB2 thin films were grown on 2-inch diameter c-sapphire wafers, showing our technique is capable of depositing large area samples. The lower critical field (Hc1) of MgB2 thin films was measured as well as it is know that bulk MgB2 has a small Hc1 and would suffer from vortex penetration at low magnetic fields. The penetrating magnetic vortices would result in loss in an applied RF field. However, due to the geometry barrier, thin film MgB2 would have a higher Hc1 than the bulk material. In my experiments, the Hc1 of MgB2 thin films increased with decreasing film thickness. At 5 K, a 100 nm epitaxial MgB2 thin film showed enhanced Hc1 ~ 1880 Oe, which is higher than Hc1 of Nb at 2 K. This showed that MgB2 coated SRF cavities have the potential to work at higher magnetic fields and higher temperature. Because the magnetic field distribution in the thin film Hc1 measurement is different from the magnetic field in a real SRF cavity, a few Nb ellipsoids were machined and coated with MgB2. The ellipsoid only has a magnetic field outside its surface and can serve as an inverse SRF cavity in the vortex penetration measurement. In the experiments, vortices penetrate into the bulk Nb ellipsoid at a magnetic field 400 Oe lower than the vortex penetration field of MgB2 coated Nb ellipsoids. This result confirmed our prediction that MgB2 coated SRF cavities could work at higher magnetic fields, thus producing higher acceleration gradients. In the last part of this thesis, I discussed how I used the dielectric resonator technique to measure the surface resistance (Rs) and Tc of MgB2 thin films. While the sensitivity of this technique was not high enough to lead to reliable Rs values, it can still serve for the determination of Tc for large area samples that are too bulky for other measurement systems.
Book Synopsis Superconducting Technology by : Kristian Fossheim
Download or read book Superconducting Technology written by Kristian Fossheim and published by World Scientific. This book was released on 1991 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains an interdisciplinary selection of timely articles which cover a wide range of superconducting technologies ranging from high tech medicine (10-12 Gauss) to multipurpose sensors, microwaves, radio engineering, magnet technology for accelerators, magnetic energy storage, and power transmission on the 109 watt scale. It is aimed primarily at the non-specialist and will be suitable as an introductory course book for those in the relevant fields and related industries. As shown in the title several examples of high-c applications are included. While low-Tc is still the leading technology, for instance, in cables and SQUIDS, case studies in these areas are presented.
Book Synopsis Enhanced Field Emission Studies on Niobium Surfaces Relevant to High Field Superconducting Radio-Frequency Devices by :
Download or read book Enhanced Field Emission Studies on Niobium Surfaces Relevant to High Field Superconducting Radio-Frequency Devices written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Enhanced field emission (EFE) presents the main impediment to higher acceleration gradients in superconducting niobium (Nb) radiofrequency cavities for particle accelerators. The strength, number and sources of EFE sites strongly depend on surface preparation and handling. The main objective of this thesis project is to systematically investigate the sources of EFE from Nb, to evaluate the best available surface preparation techniques with respect to resulting field emission, and to establish an optimized process to minimize or eliminate EFE. To achieve these goals, a scanning field emission microscope (SFEM) was designed and built as an extension to an existing commercial scanning electron microscope (SEM). In the SFEM chamber of ultra high vacuum, a sample is moved laterally in a raster pattern under a high voltage anode tip for EFE detection and localization. The sample is then transferred under vacuum to the SEM chamber equipped with an energy-dispersive x-ray spectrometer for individual emitting site characterization. Compared to other systems built for similar purposes, this apparatus has low cost and maintenance, high operational flexibility, considerably bigger scan area, as well as reliable performance. EFE sources from planar Nb have been studied after various surface preparation, including chemical etching and electropolishing, combined with ultrasonic or high-pressure water rinse. Emitters have been identified, analyzed and the preparation process has been examined and improved based on EFE results. As a result, field-emission-free or near field-emission-free surfaces at ~140 MV/m have been consistently achieved with the above techniques. Characterization on the remaining emitters leads to the conclusion that no evidence of intrinsic emitters, i.e., no fundamental electric field limit induced by EFE, has been observed up to ~140 MV/m. Chemically etched and electropolished Nb are compared and no significant difference is observed up to ~140 MV/m. To address concerns on the effect of natural air drying process on EFE, a comparative study was conducted on Nb and the results showed insignificant difference under the experimental conditions. Nb thin films deposited on Cu present a possible alternative to bulk Nb in superconducting cavities. The EFE performance of a preliminary energetically deposited Nb thin film sample are presented.
Book Synopsis MAGNESIUM DIBORIDE (MGB2) THIN FILMS ON COPPER AND SILICON FOR RADIOFREQUENCY CAVITY AND ELECTRONIC APPLICATIONS by : Wenura Kanchana Withanage
Download or read book MAGNESIUM DIBORIDE (MGB2) THIN FILMS ON COPPER AND SILICON FOR RADIOFREQUENCY CAVITY AND ELECTRONIC APPLICATIONS written by Wenura Kanchana Withanage and published by . This book was released on 2018 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnesium diboride is a known material since the 1950s. However, superconductivity in MgB2 was discovered in 2001. Soon after the discovery of superconductivity in MgB2, there was a rush to understand its complex nature of superconductivity and other properties. However, current research in MgB2 is mainly focused on applications. MgB2 possesses excellent superconducting properties such as a high transition temperature (Tc) of 39 K, a high critical current density (Jc) of ~107 A·cm-2, a high thermodynamic critical field (Hc), absence of weak links at grain boundaries, etc. Because of these properties, it is considered one of the candidate materials for applications such as superconducting wires, superconducting radiofrequency (SRF) cavities, superconducting electronic devices, etc. SRF cavities play an important role in modern particle accelerators. The main objective of an SRF cavity is to accelerate charged particle beams. SRF cavities are characterized by two figures of merit: the quality factor (Q) and the accelerating gradient (Eacc). Q characterizes the energy efficiency of an RF cavity and Eacc is the average accelerating field of an RF cavity. The state-of-the-art SRF technology is based on niobium. It is a well-matured technology and it is reaching the theoretical limits on both Q and Eacc. Additionally, Nb cavities operate at 2 K, which requires large-scale liquid helium refrigeration and distribution systems. This adds substantial capital and operational costs for large particle accelerators such as HL-LHC and proposed ILC. Because of these reasons, new SRF materials with higher Q, higher Eacc, and higher operational temperatures are desired. Currently, few superconducting materials such as Nb3Sn and MgB2 are in the research and development process. Nb3Sn has a Tc of 18 K, which is significantly lower than the Tc of MgB2. MgB2-coated cavities are theoretically predicted to have higher Q and Eacc compared to Nb cavities. In addition, owing to its high Tc, MgB2-coated cavities are expected to operate above 4.2 K (20-25 K). Operation at around 20-25 K will allow the use of hydrogen- or neon-based cryocooler technology, eliminating the use of helium. This will substantially reduce the capital and operational cost of a MgB2-based accelerator. However, this will not be possible with Nb3Sn-based SRF cavities due to the low Tc of Nb3Sn. The main goal of the research presented in this thesis is to develop MgB2-coated copper superconducting radiofrequency cavities utilizing hybrid physical-chemical vapor deposition (HPCVD) technique. MgB2-coated Cu SRF cavities will have an added advantage due to the high thermal conductivity of the Cu. The excellent thermal conductivity of Cu enhances the heat transfer between the superconducting MgB2 layer and the cavity body, thus providing better resistance to thermal breakdown. RF characterization of MgB2-coated Cu is a crucial requirement because it is the first step toward the MgB2 -coated Cu SRF cavities. For these characterizations, small-sized samples (e.g., 2-inch diameter) are usually required. Among several MgB2 growth techniques, the HPCVD process produces the best quality MgB2 thin films. However, the growth of MgB2 films on Cu using the HPCVD technique is challenging as Mg, and Cu readily react to form several Mg-Cu alloys. Therefore, a new MgB2 growth process on Cu was developed by modifying the existing HPCVD process and in the new process, the deposition takes place at ~470 °C. With this new process, high-quality MgB2 thin films were successfully deposited on 2-inch diameter Cu discs, and these samples were characterized in terms of structural and superconducting properties. Surface morphology showed well-connected crystallites with no pinholes on the coating, and the cross-sectional studies showed conformal growth of MgB2 on Cu. The Tc of these samples were ~37 K and the ~107 A·cm-2 zero field Jc was observed. Most importantly, RF characterizations at 11.4 GHz showed Q close to 2 x 107 at 4 K, which was comparable to the Q of Nb. After successful RF testing of MgB2-coated Cu discs, this process was scaled up to coat 3 GHz Cu RF cavities. As the first step, a MgB2 thin film was synthesized on the inner wall of Cu tubes with dimensions (~1.5-inch inner diameter and 8-inch length), similar to a beam tube of a 3 GHz RF cavity. The MgB2 film on the Cu tubes showed conformal coating with Tc ~37 K. Next, the coating of the 3 GHz Cu test cavity was carried out. Cu test cavities were assembled using two half-cells pressed at Thomas Jefferson National Accelerator Facility (JLab) and two beam tubes machined at Temple University. The MgB2 film was successfully synthesized on the inner wall of 3 GHz test cavities and the MgB2 coating on the two half-cells showed uniform growth with Tc distributed around 35 K. However, slight damages to the cavity wall were observed and these damages were mainly due to the deformation of the Cu surface, caused by the formation of Mg-Cu alloy liquid. Current research is focused on developing damage-free MgB2-coated Cu RF cavities. In addition to MgB2 growth on Cu for SRF cavity applications, development of high-quality MgB2 thin film on Si substrates was carried out. This will be used in electronic device applications such as fabrication of hot-electron bolometers (HEB). An issue similar to the Mg-Cu reaction was observed with Si; Si and Mg react at elevated temperatures, forming Mg2Si, and this was observed at around 550°C. This reaction prevents the use of the HPCVD technique directly on Si. Previous attempts at synthesizing MgB2 films on Al2O3-buffered Si substrates at low temperatures (500-600°C) were reported. However, these films have shown extremely rough surfaces with poor superconducting properties. In this work, a ~220 nm-thick boron buffer layer was used to prevent the Mg-Si reaction, and it was observed that the boron was effective even above 700°C. High-quality MgB2 thin films were synthesized on boron-buffered Si substrates using the standard HPCVD technique. However, the resultant films showed enhanced roughness due to the polycrystalline growth. Ar ion milling at an ultra-low angle (1°) was used to smooth the MgB2 films, and the resultant films showed roughness comparable to epitaxial films grown on SiC substrates with a slight degrade in superconducting properties. Finally, Al ion implantation in the MgB2 thin film was studied and this project was carried out to synthesize MgB2 films with modified superconducting properties. In this study, 80 nm-thick MgB2 films were irradiated with a 75 keV Al ion beam. A 30 nm Au buffer layer was used on top of the MgB2 films in order to position the projected range of Al ions near the center of the MgB2 films. Al ion doses were kept between 2×1011-1×1016 atoms·cm-2. Superconducting properties and the structural properties of these Al ion irradiated films showed systematic change with the Al dose. Superconducting transition temperature decreased with increasing Al dose. Also, for the Al ion dose at or above 2 × 1014 atoms·cm-2, the irradiated samples did not show any superconducting transition. Al ion irradiated films showed an increase in the c-axis lattice parameter of MgB2 with increasing ion dose. These observed changes in the superconducting properties and structural properties of Al ion irradiated films can be attributed to the ion damage.
Book Synopsis RF Superconductivity for Accelerators by : Hasan Padamsee
Download or read book RF Superconductivity for Accelerators written by Hasan Padamsee and published by John Wiley & Sons. This book was released on 2008-02-26 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces some of the key ideas of this exciting field, using a pedagogic approach, and presents a comprehensive overview of the field. It is divided into four parts. The first part introduces the basic concepts of microwave cavities for particle acceleration. The second part is devoted to the observed behavior of superconducting cavities. In the third part,general issues connected with beam-cavity interaction and the related issues for the critical components are covered. The final part discusses applications of superconducting cavities to frontier accelerators of the future, drawing heavily on the examples that are in their most advanced stage. Each part of the book ends in a Problems section to illustrate and amplify text material as well as draw on example applications of superconducting cavities to existing and future accelerators.
Book Synopsis Synthesis of Superconducting Nb3Sn Thin Film Heterostructures for the Study of High-energy RF Physics by : Christopher Sundahl
Download or read book Synthesis of Superconducting Nb3Sn Thin Film Heterostructures for the Study of High-energy RF Physics written by Christopher Sundahl and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio-frequency (RF) particle accelerator cavities are one of the industrial and research applications in which superconductivity, still an underexplored phenomenon, has been broadly adopted. Niobium (Nb) cavities are ubiquitous in accelerator facilities, and research to improve their reliability and quality are ongoing. However, Nb technology is reaching fundamental material limitations, and new systems must be explored to continue improvement. In this thesis, we investigate a thin film structure that has been proposed to dramatically increase both the efficiency and maximum accelerating gradient achievable in these applications. First, we discuss the reasoning behind our choice of Nb3Sn/Al2O3 for the exploration of these properties and the challenges involved in growing these materials. We show that the challenges of processing Nb3Sn can be overcome with a high-temperature growth method and that there is a growth window where the stoichiometry of the Nb3Sn films is self-regulating. Second, we scale growth up to wafer-scale films and heterostructures, and confirm the structure and quality using cross-sectional TEM. RF measurements were conducted in cavity geometry at low RF fields on wafers of Nb3Sn and Nb3Sn/Al2O3. The results of these measurements are encouraging, showing that the Nb3Sn has very low surface resistance, and compares well to a bulk Nb sample measured in the same cavity. The multilayer sample had a higher quality factor than the single-layer film, confirming that the Al2O3 layer contributes very little to surface resistance. The development of this system makes it possible to explore the effects of film morphology and heterostructure geometry on the quench field, and to study the physics of the superconductor-insulator-superconductor structure under high frequencies and magnetic fields.
Book Synopsis Magnesium Diboride Coated Bulk Niobium by :
Download or read book Magnesium Diboride Coated Bulk Niobium written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Bulk niobium Superconducting Radio-Frequency cavities are a leading accelerator technology. Their performance is limited by the cavity loss and maximum acceleration gradient, which are negatively affected by vortex penetration into the superconductor when the peak magnetic field at the cavity wall surface exceeds the vortex penetration field (Hvp). It has been proposed that coating the inner wall of an SRF cavity with superconducting thin films increases Hvp. In this work, we utilized Nb ellipsoid to simulate an inverse SRF cavity and investigate the effect of coating it with magnesium diboride layer on the vortex penetration field. A significant enhancement of Hvp was observed. At 2.8 K, Hvp increased from 2100 Oe for an uncoated Nb ellipsoid to 2700 Oe for a Nb ellipsoid coated with ~200 nm thick MgB2 thin film. In conclusion, this finding creates a new route towards achieving higher acceleration gradient in SRF cavity accelerator beyond the theoretical limit of bulk Nb.
Book Synopsis Iron-Based Superconducting Thin Films by : Silvia Haindl
Download or read book Iron-Based Superconducting Thin Films written by Silvia Haindl and published by Springer Nature. This book was released on 2021-06-27 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a modern introduction to the growth, characterization, and physics of iron-based superconducting thin films. Iron pnictide and iron chalcogenide compounds have become intensively studied key materials in condensed matter physics due to their potential for high temperature superconductivity. With maximum critical temperatures of around 60 K, the new superconductors rank first after the celebrated cuprates, and the latest announcements on ultrathin films promise even more. Thin film synthesis of these superconductors began in 2008 immediately after their discovery, and this growing research area has seen remarkable progress up to the present day, especially with regard to the iron chalcogenides FeSe and FeSe1-xTex, the iron pnictide BaFe2-xCoxAs2 and iron-oxyarsenides. This essential volume provides comprehensive, state-of-the-art coverage of iron-based superconducting thin films in topical chapters with detailed information on thin film synthesis and growth, analytical film characterization, interfaces, and various aspects on physics and materials properties. Current efforts towards technological applications and functional films are outlined and discussed. The development and latest results for monolayer FeSe films are also presented. This book serves as a key reference for students, lecturers, industry engineers, and academic researchers who would like to gain an overview of this complex and growing research area.
Book Synopsis High Tc Superconductor Thin Films by : L. Correra
Download or read book High Tc Superconductor Thin Films written by L. Correra and published by Elsevier. This book was released on 2012-12-02 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interdisciplinary research on superconducting oxides is the main focus of the contributions in this volume. Several aspects of the thin film field from fundamental properties to applications are examined. Interesting results for the Bi system are also reviewed. The 132 papers, including 8 invited, report mainly on the 1-2-3 system, indicating that the Y-Ba-Cu-O and related compounds are still the most intensively studied materials in this field. The volume attests to the significant progress that has been made in this field, as well as reporting on the challenging problems that still remain to be solved.
Book Synopsis RF Superconductivity for Accelerators by : Hasan Padamsee
Download or read book RF Superconductivity for Accelerators written by Hasan Padamsee and published by Wiley-VCH. This book was released on 1998-04-28 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces some of the key ideas of this exciting field, using a pedagogic approach, as well as to present an overview of the field. It is divided into four parts. The first part introduces the basic concepts of microwave cavities for particle acceleration. The second part is devoted to the observed behavior of superconducting cavities. The third part covers general issues connected with beam-cavity interaction, and the related issues for the critical components. The final part discusses applications of superconducting cavities to frontier accelerators of the future, drawing heavily on the examples that are in their most advanced stage. Each part of the book ends in a Problems section to illustrate and amplify text material as well as draw upon example applications of superconducting cavities to existing and future accelerators.
Book Synopsis RF Superconductivity by : Hasan Padamsee
Download or read book RF Superconductivity written by Hasan Padamsee and published by John Wiley & Sons. This book was released on 2009-03-30 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second book to RF Superconducting, written by one of the leading experts. The book provides fast and up-to-date access to the latest advances in the key technology for future accelerators. Experts as well as newcomers to the field will benefit from the discussion of progress in the basic science, technology as well as recent and forthcoming applications. Researchers in accelerator physics will also find much that is relevant to their discipline.
Book Synopsis Science and Technology of Thin Film Superconductors by : R.D. McConnell
Download or read book Science and Technology of Thin Film Superconductors written by R.D. McConnell and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Conference on the Science and Technology of Thin Film Superconductors was conceived in the early part of 1988 as a forum for the specialist in thin film superconductivity. The conference was held on November 14-18, 1988, in Co lorado Springs, Co lorado. Al though many excellent superconductivity conferences had been convened in the wake of the 1986-1987 discoveries in high temperature superconductivity, thin film topics were often dispersed among the sessions of a more general conference agenda. The response to the Conference on the Science and Technology of Thin Film Superconductors confirmed the need for an extended conference devoted to thin film superconductors. These proceedings are a major contribution to the technnology of thin film superconductivity because of the breadth and quality of the articles provided by leaders in the field. The proceedings are divided into articles on laser deposition, sputtering, evaporation, metal organic chemical vapor deposition, thick film, substrate studies, characterization, patterning and applications, and general properties. Most of the articles discuss scientific issues for high temperature thin film superconductors, although the conference was to be a forum for technology and scientific questions for both low and high temperature superconductivity. For the first day of the 5 day conference, Lawrence Berkeley Laboratory had organized an excellent set of short courses in superconduc t ing thin film devices.
Book Synopsis Superconducting Thin Films for SRF Cavity Applications by : William Michael Roach
Download or read book Superconducting Thin Films for SRF Cavity Applications written by William Michael Roach and published by . This book was released on 2014 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
