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Electrical Transport Properties Of Epitaxial And Granular Oriented Yba2cu3o Delta Thin Films
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Book Synopsis Electrical Transport Properties of Epitaxial and Granular Oriented YBa2Cu3O--[̲delta] Thin Films by : Edwin C. Jones
Download or read book Electrical Transport Properties of Epitaxial and Granular Oriented YBa2Cu3O--[̲delta] Thin Films written by Edwin C. Jones and published by . This book was released on 1992 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Control of Properties of Epitaxial YBa2Cu3O---[delta] Thin Films Grown by Co-evaporation and Post Annealing by : Shang Yun Hou
Download or read book Control of Properties of Epitaxial YBa2Cu3O---[delta] Thin Films Grown by Co-evaporation and Post Annealing written by Shang Yun Hou and published by . This book was released on 1993 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photoresponse of YBa2Cu3O--[delta] Granular and Epitaxial Superconducting Thin Films by :
Download or read book Photoresponse of YBa2Cu3O--[delta] Granular and Epitaxial Superconducting Thin Films written by and published by . This book was released on 1990 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Epitaxial Thin Films of Yba2cu3o7-[Delta] on Silicon with Different Buffer Layers by : Engang Fu
Download or read book Study of Epitaxial Thin Films of Yba2cu3o7-[Delta] on Silicon with Different Buffer Layers written by Engang Fu and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Study of Epitaxial Thin Films of YBa2Cu3O7-[delta] on Silicon With Different Buffer Layers" by Engang, Fu, 付恩剛, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled STUDY OF EPITAXIAL THIN FILMS OF YBa Cu O ON 2 3 7-δ SILICON WITH DIFFERENT BUFFER LAYERS submitted by Fu Engang for the degree of Master of Philosophy at The University of Hong Kong in August 2005 Silicon is the most widely used semiconductor in the microelectronic industry. Highly epitaxial thin films of YBa Cu O (YBCO) grown on Si wafers are of 2 3 7-δ special interest for development of superconductor/semiconductor hybrid microelectronic devices and circuits. However, severe interaction between Si and YBCO layer, large mismatch in their lattice constant, and strain due to different thermal expansion often degrade the crystallinity and superconductivity of the grown YBCO layers. In this study, yttria-stabilized zirconia (YSZ) and Eu CuO (ECO) 2 4 were introduced as double buffer layers to improve the growth and properties of the YBCO thin films grown on silicon. Preparation and characterization of epitaxial YBCO/ECO/YSZ/Si multilayer structures were studied. YBCO thin films and the double buffer layers of ECO/YSZ were deposited on the silicon (100) substrate by the pulsed laser deposition (PLD) method. Firstly, the YSZ thin layer was grown epitaxially on silicon (100) substrate to separate YBCO from the Si substrate. Effects of substrate temperature and operating gas pressure on the structure and surface roughness of YSZ thin film were examined and the optimum deposition parameters were determined based on experimental results and comprehensive analysis. X-Ray diffraction (XRD) patterns and rocking curve revealed an epitaxial growth with a perfect c-axis orientation. The YSZ thin films grown on silicon substrate have smooth surface, providing a base on which ECO and YBCO thin film can be grown epitaxially. To further improve the quality of YBCO films, an additional layer of ECO with very stable 214-T' crystal structure was inserted between YBCO and YSZ/Si. The influence of substrate temperature and oxygen gas pressure on the properties of ECO thin films grown on YSZ/Si were experimentally analyzed and the growth conditions were optimized. Finally, the epitaxial YBCO thin films were grown on silicon substrate with double buffer layers of ECO/YSZ. The influences of substrate temperature, oxygen gas pressure and different buffer layers on the properties of YBCO thin films were studied. It was found that the crystal structure, surface roughness and superconductivity of YBCO films could be significantly improved by adding such a double buffer of ECO/YSZ. The quality of the YBCO thin films has been significantly enhanced when compared with that grown on Si with a single YSZ buffer layer and with double buffer layers of Nd CuO (NCO)/YSZ. Such highly 2 4 epitaxial thin films of YBCO grown on silicon should be of great interest for various applications including high-frequency elements, millimeter-wave receivers, and superconducting quantum interference devices. DOI: 10.5353/th_b3637488 Subjects: Thin films Silicon Epitaxy
Book Synopsis Structure and Transport Properties of Epitaxial Oxide Thin Films by : Junsoo Shin
Download or read book Structure and Transport Properties of Epitaxial Oxide Thin Films written by Junsoo Shin and published by . This book was released on 2007 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Epitaxial thin films and heterostructures based on perovskite oxides have attracted significant attention in physics since perovskites exhibit an enormous range of electrical, magnetic, and optical properties, making them exciting systems for studies of the fundamental physical mechanisms of interactions between electron, lattice, and spin degrees of freedom. This dissertation has been focused on ferroelectricity in low-dimensional ferroelectric materials using ultra-thin ferroelectric epitaxial films (BaTiO3) with a metallic electrode (SrRuO3) by studying polarized ordering of the crystal structure and electronic transport through the films. High quality and highly oxidized epitaxial films are a prerequisite for the clear observation of physical properties such as ferroelectricity which depends on a sensitive balance of lattice structure, dynamics, and charge distribution. Measurements in low dimensional, ultra-thin films require a controlled surface status through in-situ characterization. As is demonstrated here, fundamental physical phenomena on surfaces and in ultra-thin films are easily modified due to reactivity in ambient air, even for oxide materials generally considered inert. This study is centered on in-situ low energy electron diffraction and scanning tunneling spectroscopy of BaTiO3 films grown on SrRuO3 electrodes on a SrTiO3 substrate. Results show out-of-plane polarized structure and polarization switching, which provide evidence of ferroelectricity in films down to 4 ML. Surface reconstruction in 1-2 ML thick BaTiO3 films is seriously affected by the interface between BaTiO3 films and SrRuO3 bottom electrode. Our observation in epitaxial BaTiO3 films indicates the existence of ferroelectricity with a lower limit (4 ML) for the minimum thickness than theoretical expectation (6 ML), which results from the difference of film stress, termination on films, and depolarizing screening.
Book Synopsis Epitaxial Thin Film Growth and Study of Charge and Mass Transport Properties of Mixed Ionic Electronic Conducting GdBaCo2O5+[delta] (GBCO) by : James Arturo Zapata Correa
Download or read book Epitaxial Thin Film Growth and Study of Charge and Mass Transport Properties of Mixed Ionic Electronic Conducting GdBaCo2O5+[delta] (GBCO) written by James Arturo Zapata Correa and published by . This book was released on 2016 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transport Properties of LaTiO3+[delta] and REBa2Cu3O7-[delta] Thin Films by : Stefano Gariglio
Download or read book Transport Properties of LaTiO3+[delta] and REBa2Cu3O7-[delta] Thin Films written by Stefano Gariglio and published by . This book was released on 2003 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1993 with total page 1146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Book Synopsis World Congress on Superconductivity by : Calvin G. Burnham
Download or read book World Congress on Superconductivity written by Calvin G. Burnham and published by World Scientific. This book was released on 1988 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of high temperature superconductors is one of the major technological discoveries of this century. The impact and interactions from the scientific, technical, business and political aspects will be presented.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1993 with total page 1420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The BSCCO System by : A. V. Narlikar
Download or read book The BSCCO System written by A. V. Narlikar and published by Nova Publishers. This book was released on 2001 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 35th volume of the 'Studies' is devoted to the technologically important BSCCO system. It focuses on a host of topics such as the synthesis and fabrication of conductors, superconducting BSCCO magnets, and the basic technological properties of the material in relation to the microstructure. The authors are distinguished in the field, working in different parts of the world, maintaining the international character of the series.
Book Synopsis Second Contacts by : Hayden Trenholm
Download or read book Second Contacts written by Hayden Trenholm and published by Bundoran Press Publishing. This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Second Contacts "presents eighteen stories from writers in six countries (Canada, United States, England, Mexico, Israel, and the Netherlands) that answer the question: What happens after first contact? Set fifty years in the future, they explore the aftermath of alien contact, for us and for the aliens.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1994-12 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Superconducting Technology: 10 Case Studies by : K Fossheim
Download or read book Superconducting Technology: 10 Case Studies written by K Fossheim and published by World Scientific. This book was released on 1991-07-22 with total page 251 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-Tc 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 Superconducting Machines and Devices by : S. Foner
Download or read book Superconducting Machines and Devices written by S. Foner and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 703 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents detailed discussions of several of the large scale applications of superconductivity which will have major economic impact on technical developments in the industrial world. The world wide concern with energy problems makes this work particularly timely. Some of the large scale devices and systems such as superconducting generators, motors, power transmission, large magnets, high speed ground transportation and industrial processing clearly speak directly to improved efficiencies of generation and utilization of energy. The articles treat each subject in depth. The text is suitable for advanced undergradu ate or graduate engineering or applied science courses. The text should also be of immediate use to practicing engineers and scientists in applied superconductivity. The unique summaries of national efforts in applied superconductivity will also be valuable to industrial and government plan ners. The book is based on a NATO Advanced Study Institute entitled, "Large Scale Applications of Superconductivity and Magnetism" which was held September 5 to 14 in the Hotel des Alpes, Entreves, Valle d'Aosta, Northern Italy. This Study Institute represented a departure from other NA TO Advanced Study Institutes in that it was very strongly directed toward engineering applications rather than purely scientifically oriented interests. The planning of this Institute developed over several years and would not have been possible without continued interest by several key NATO Scientific Mfairs Division scientists. It started when one of us (S. F. ) met with Dr. H.