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Experimental Investigations Of Magnesium Diboride Josephson Junctions
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Book Synopsis Experimental Investigations of Magnesium Diboride Josephson Junctions by : Steven A. Carabello
Download or read book Experimental Investigations of Magnesium Diboride Josephson Junctions written by Steven A. Carabello and published by . This book was released on 2016 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, I present the results of experiments on Josephson tunnel junctions that incorporate magnesium diboride (MgB2) as one of the superconducting electrodes. Through explorations of their current vs. voltage and conductance vs. voltage characteristics, I produced high-resolution distributions of the energy gap structure of MgB2. I also explored their resonant modes by performing the first superconducting-to-normal state switching experiments on such "hybrid" junctions. Magnesium diboride exhibits two superconducting energy gaps, sigma and pi. The Josephson junctions measured for this thesis used clean MgB2 thin films grown by hybrid physical-chemical vapor deposition on single-crystal silicon carbide substrates. For some films, only the c-axis is exposed, allowing direct tunneling to the pi gap. In others, the a-b plane is exposed, allowing us to explore the sigma gap as well. Lead or tin were evaporated to form the superconducting counterelectrodes. I performed high-resolution tunneling spectroscopy measurements of these junctions. Their results demonstrate that, for films with little scattering, it is not possible to model the density of states with only two superconducting energy gaps. Instead, at least four gaps are needed and a distribution is more appropriate, as anticipated by several theoretical results. The switching of Josephson junctions from the superconducting to normal states reveals additional interesting physics. There has been some recent theoretical interest in the switching behavior of "hybrid" junctions -- those consisting of one single-gap electrode and one multi-gap electrode, separated by a tunneling barrier. I observed several features of the superconducting-to-normal switching behavior that are not yet explained by theory. However, most of my results are consistent with theories developed for conventional single-gap/single-gap Josephson junctions, suggesting that switching in these junctions is dominated by a single tunneling mode. By measuring the switching behavior across temperatures, with and without microwave excitation, I was able to characterize the resistance, capacitance, critical current, and quality factor of these junctions. Each junction proved to be highly underdamped (quality factor Q ” 1). Because my results also exhibit several signatures of quantum-mechanical behavior, similar junctions may be suitable for quantum device applications.
Book Synopsis New Topics in Josephson Junction and Superconductivity Research by : Carl S. Winslow
Download or read book New Topics in Josephson Junction and Superconductivity Research written by Carl S. Winslow and published by Nova Publishers. This book was released on 2007 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Josephson Junction is a type of electronic circuit capable of switching at very high speeds when operated at temperatures approaching absolute zero. It exploits the phenomenon of superconductivity, the ability of certain materials to conduct electric current with practically zero resistance. This book presents new and important research in superconductivity. This includes optical properties, magneto-optics and surface acoustic waves, microwave responses, theories of superconductivity, synthesis in electronic applications and high temperature superconductivity.
Book Synopsis MAGNESIUM DIBORIDE JOSEPHSON JUNCTIONS FOR SUPERCONDUCTING DEVICES AND CIRCUITS by : Daniel Cunnane
Download or read book MAGNESIUM DIBORIDE JOSEPHSON JUNCTIONS FOR SUPERCONDUCTING DEVICES AND CIRCUITS written by Daniel Cunnane and published by . This book was released on 2013 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis EXPERIMENTAL STUDIES OF LONG JOSEPHSON JUNCTIONS. by :
Download or read book EXPERIMENTAL STUDIES OF LONG JOSEPHSON JUNCTIONS. written by and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Endless Quests: Theory, Experiments And Applications Of Frontiers Of Superconductivity by : Jiangdi Fan
Download or read book Endless Quests: Theory, Experiments And Applications Of Frontiers Of Superconductivity written by Jiangdi Fan and published by World Scientific. This book was released on 2019-01-15 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is devoted to advancing and developing the frontiers of superconductivity; in particular, the theory of the Diagrammatic Iteration Approach (DIA), described in Chapter 1, is unique in the community of superconductivity.The application of DIA to electron correlation effects has allowed the tough issue of strongly-coupled electron systems to be solved, which is important for high-temperature superconductivity (HTS). DIA, when applied to a layered two-dimensional system, gives rise to marvelous outcomes that can explain all the anomalies in the normal state of HTS, and leads to a transition temperature that is dependent on quantities including the dielectric constant, electron band mass and spacing between layers. This then serves as a quantifiable guide on how to make ideal superconductors. Moreover, in such a scenario, the mechanisms of low- and high-temperature superconductivity can be unified on the basis of repulsive Coulomb interactions between electrons.The book contains rich first-hand information on experiments at the frontiers of superconductivity, as well as on relevant applications of such cutting-edge developments. For instance, Jiasu Wang, co-author of the chapter discussing the HTS Maglev train, is the person who completed the world's first HTS Maglev train. Thus, the draw of this book lies not only in its ability to marry theory, experiment and application, but also in its inclusion of research from prestigious experts of the field.
Book Synopsis Understanding the Effects of Disorder in Magnesium Diboride Films and Development of Novel Magnesium Diboride Based Josephson Junctions by : Raghuram Gandikota
Download or read book Understanding the Effects of Disorder in Magnesium Diboride Films and Development of Novel Magnesium Diboride Based Josephson Junctions written by Raghuram Gandikota and published by . This book was released on 2007 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Magnesium Diborid by : David J. Fisher
Download or read book Magnesium Diborid written by David J. Fisher and published by Trans Tech Publications Ltd. This book was released on 2006-02-15 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This substance is very much a material for the new millennium, since its new manifestation as a high-temperature superconductor can be dated precisely from the seminal 2001 Nature paper (1st March, p63), Superconductivity at 39K in Magnesium Diboride, by J.Nagamatsu, N.Nakagawa, T.Muranaka, Y.Zenitani and J.Akimitsu of the Physics Department of Aoyama-Gakuin University, Tokyo. Until then, it had been seen and used only as a rather nondescript ceramic/abrasive.
Book Synopsis Modern Aspects of Superconductivity by : Sergei Kruchinin
Download or read book Modern Aspects of Superconductivity written by Sergei Kruchinin and published by World Scientific. This book was released on 2011 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superconductivity remains one of the most interesting research areas in physics and stood as a major scientific mystery for a large part of this century. This book, written for graduate students and researchers in the field of superconductivity, discusses important aspects of the experiment and theory surrounding superconductivity. New experimental investigations of magnetic and thermodynamic superconducting properties of mesoscopic samples are explored with the help of recent developments in nanotechnologies and measurement techniques, and the results are predicted based upon theoretical models in nanoscale superconducting systems. Topics of special interest include high-Tc superconductivity, two-gap superconductivity in magnesium diborades, room-temperature superconductivity, mechanism of superconductivity and mesoscopic superconductivity. Particular attention is given to understanding the symmetry and pairing in superconductors. The theory of the Josephson effect is presented and its application in quantum computing are analyzed.
Book Synopsis Studies of High Temperature Superconductors by : A. V. Narlikar
Download or read book Studies of High Temperature Superconductors written by A. V. Narlikar and published by Nova Publishers. This book was released on 2006 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Golden Jubilee volume in the world's foremost series on superconductivity covers wide-ranging topics capturing the current excitement in the field. The broad areas include the advancement of high Tc theory, materials depicting unusual characteristics, materials' processing and defect structures for improved properties, their electromagnetic response, flux pinning, Josephson junctions and devices, and large scale applications.
Book Synopsis Josephson Junctions by : Edward L. Wolf
Download or read book Josephson Junctions written by Edward L. Wolf and published by CRC Press. This book was released on 2017-09-07 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the history and present status and applications of Josephson junctions. These devices are leading elements in superconducting electronics and provide state-of-the-art performance in detection of small magnetic fields and currents, in several digital computing methods, and in medical diagnostic devices and now provide voltage standards used worldwide. Astronomical infrared (IR) telescopes, including the South Pole Telescope, use these junctions in combinations called superconducting quantum interference devices (SQUIDs).
Book Synopsis Issues in Extreme Conditions Technology Research and Application: 2011 Edition by :
Download or read book Issues in Extreme Conditions Technology Research and Application: 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 673 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Extreme Conditions Technology Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Extreme Conditions Technology Research and Application. The editors have built Issues in Extreme Conditions Technology Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Extreme Conditions Technology Research and Application in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Extreme Conditions Technology Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Book Synopsis Magnesium Diboride Sourcebook by : D. J. Fisher
Download or read book Magnesium Diboride Sourcebook written by D. J. Fisher and published by . This book was released on 2006 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: This substance is very much a material for the new millennium, since its new manifestation as a high-temperature superconductor can be dated precisely from the seminal 2001 Nature paper (1st March, p63), Superconductivity at 39K in Magnesium Diboride, by J.Nagamatsu, N.Nakagawa, T.Muranaka, Y.Zenitani and J.Akimitsu of the Physics Department of Aoyama-Gakuin University, Tokyo. Until then, it had been seen and used only as a rather nondescript ceramic/abrasive.
Book Synopsis Applied Superconductivity 2003 by : Antonello Andreone
Download or read book Applied Superconductivity 2003 written by Antonello Andreone and published by CRC Press. This book was released on 2004-09-30 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: According to its tradition, the EUCAS Conference focused on the role of superconductivity in bridging various aspects of research with a variety of concrete advanced applications. The wide interactions among scientists operating worldwide in the field of superconductivity and the sharing of their knowledge and experience represented the main result of the event. The EUCAS Conference has been an ideal forum for presentation and discussion of recent developments in the field of applied superconductivity in the area of power and electronic applications. Great emphasis has been given to materials research directly connected to such applications. For this conference, 515 plenary, invited, and contributed papers were accepted, covering different areas of applications that strongly benefit from the use of superconductivity, such as energy transportation, large magnet systems, biomedical instrumentation, digital electronics, wireless communications, and quantum computing. Forty-two plenary and invited papers are included in Applied Superconductivity 2003, along with a CD-ROM that contains PDF files of all the contributed papers linked from contents lists (and, for completeness, plenary and invited papers). These proceedings are addressed to international physicists, electrotechnical and electronic engineers, material scientists, and chemists interested in the most recent and exciting advances in the field of applied superconductivity.
Book Synopsis Issues in Electronics Research and Application: 2011 Edition by :
Download or read book Issues in Electronics Research and Application: 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 1976 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Electronics Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Electronics Research and Application. The editors have built Issues in Electronics Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Electronics Research and Application in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Electronics Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Book Synopsis Journal of Experimental and Theoretical Physics by :
Download or read book Journal of Experimental and Theoretical Physics written by and published by . This book was released on 2007 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Josephson Junction Devices by : Josephine Chen
Download or read book Josephson Junction Devices written by Josephine Chen and published by . This book was released on 2003 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Solid State Physics by : S. L. Chaplot
Download or read book Solid State Physics written by S. L. Chaplot and published by Alpha Science Int'l Ltd.. This book was released on 2002 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume covers the proceedings of the 44th Department of Atomic Engineering (DAE) Solid State Physics Symposium.With contributions of papers from institutions from around the world. Contains 316 research articles, including 28 invited papers, on a wide range of topics of current interest in solid state physics comprising the following categories: Phase Transitions Phonons Soft-condensed Matter Electronic Structure Novel Materials Superconductivity Experimental Techniques and Instrumentation Magnetism Liquids, Glasses and Amorphous Systems Transport Properties Relaxation Studies Semiconductor Physics Surface Science Key Features: Recent developments in Synchrotron Research Photo-electron Spectroscopy Newly emerging superconductors
