Download or read book Microwave Properties of High Transition Temperature Superconducting Thin Films written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-12-31 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extensive studies of the interaction of microwaves with YBa2Cu3O(7-delta), Bi-based, and Tl-based superconducting thin films deposited in several microwave substrates were performed. The data were obtained by measuring the microwave power transmitted through the film in the normal and the superconducting state and by resonant cavity techniques. The main motives were to qualify and understand the physical parameters such as the magnetic penetration depth, the complex conductivity, and the surface impedance, of high temperature superconducting (HTS) materials at microwave frequencies. Based on these parameters, the suitability of these HTS thin films is discussed for microwave applications. Gordon, W. L. NASA-CR-185842, NAS 1.26:185842 NCC3-40...
Download or read book High Temperature Superconductor Thin Films at Microwave Frequencies written by Matthias Hein and published by Springer Science & Business Media. This book was released on 1999-07-02 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book develops a comprehensive understanding of the surface impedance of the oxide high-temperature superconductors in comparison with the conventional superconductor Nb3Sn. Linear and nonlinear microwave responses are treated separately, both in terms of models, theories or numerical approaches and in terms of experimental results. The theoretical treatment connects fundamental aspects of superconductivity to the specific high-frequency properties. The experimental data review the state of the art, as reported by many international groups. The book describes further the main features of appropriate preparation, handling, mounting, and refrigeration techniques, and finally discusses possible applications in passive and active microwave devices.
Download or read book Microwave Properties of High Temperature Superconductor written by An Qiu and published by . This book was released on 1995 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microwave Properties of High Temperature Superconducting Thin Films written by Mizarina Abu Bakar and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Science and Technology of Thin Film Superconductors 2 written by R.D. McConnell and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: This conference is the second on the Science and Technology of Thin Film Superconductors. It proved to be an excellent forum for these specialists in thin film superconductivity. The conference, held April 30-May 4, 1990, in Denver, Colorado, hosted 170 researchers from 17 countries. The response to the conference again emphasized the need for a meeting devoted to the science and technology of thin film superconductors. The breadth of artic1es and advances made in this technology since the first conference in November 1988, reflect on the maturity of the topic. These proceedings contain artic1es on deposition methods by sputtering, e1ectron beam evaporation, resistive evaporation, laser ablation, chemical vapor deposition and electrodeposition, and on other studies related to substrates, thermodynamics of formation, grain boundaries and weak links, characterization, and some practical applications. The program committee was pleased with the quality of the publications and contributed articles. This conference was highlighted by a fuU day dedicated to presentations from the federallaboratories, discussing a wide range of topics on the fabrication, characterization, and theory of high-temperature superconductor thin films. Other highlights at the conference dealt with (1) critical parameters or problems in measuring critical current density and other important parameters, and (2) problems of scale-up, reproducibility, and amenability to device fabrication. It became evident from the presentations that three issues were developing into critical issues for the ultimate practical application of high temperature superconductor thin films.
Download or read book Microwave Response of High Transition Temperature Superconducting Thin Films written by Félix A. Miranda and published by . This book was released on 1991 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Transport Properties Of Superconductors Proceedings Of The International Conference written by Nicolsky Roberto and published by World Scientific. This book was released on 1990-08-28 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Conference is designed to cover the entire field of current-carrying properties of superconductors, either metallic alloys or the new high-Tc metallic oxides. Related topics will be treated as well as the large scale applications. Topics covered include magnetization and flux behaviour, current transport and critical currents, Josephson junctions and proximity effect, microwave absorption and rf surface resistance, thermal conductivity and specific heat, Hall effect and thermoelectric power, thermal fluctuations and paraconductivity, applications of high-Tc materials.
Download or read book Studies of High Temperature Superconductors written by Anant Narlikar and published by Nova Science Publishers. This book was released on 1996 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Six chapters report recent research on high-temperature superconductors from the perspectives of radio-frequency investigations, microwave surface impedance and device applications, mixed state and superconducting fluctuations in single crystals, circuits and systems, microwave and radio- frequency
Download or read book High Temperature Superconductors written by X G Qiu and published by Elsevier. This book was released on 2011-03-28 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: High temperature superconductors have received a great deal of attention in recent years, due to their potential in device and power applications. This book summarises the materials science and physics of all the most important high temperature superconductors as well as discussing material growth, properties and applications. Part one covers fundamental characteristics of high temperature superconductors and high TC films such as deposition technologies, growth, transport properties and optical conductivity. Part two is concerned with growth techniques and properties of high temperature superconductors, including YBCO, BSCCO and HTSC high TC films, and electron-doped cuprates. Finally, part three describes the various applications of high temperature superconductors, from Josephson junctons and dc-superconductive quantum inference devices (dc-SQUIDs) to microwave filters. With its distinguished editor and international team of contributors, this book is an invaluable resource for those researching high temperature superconductors, in industry and academia. In light of the many recent advances in high temperature superconductors, it will benefit physicists, materials scientists and engineers working in this field, as well as in areas of industrial application, such as electronic devices and power transmission. Summarises the materials science and physics of all the most important high temperature superconductors Discusses material growth, properties and applications Outlines fundamental characteristics of high temperature superconductors and high TC films
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.
Download or read book Microwave Analysis of Unconventional Superconductors with Coplanar Resonator Techniques written by Gianluca Ghigo and published by Springer Nature. This book was released on 2022-01-29 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a thorough overview of methods and approaches to the experimental characterization of superconductors at microwave frequencies, and includes a detailed description of the two main techniques, both based on the use of coplanar waveguide resonators, that the authors employed to investigate the properties of unconventional superconductors. In the second part several case studies are described, covering a large spectrum of materials and issues. Particular emphasis is given to recent hot topics concerning iron-based superconductors, both of fundamental nature and relevant for applications. The book is intended as a learning tool for researchers in the field, and serves as a guide providing inspiring examples of the use of coplanar resonator techniques to address key topics in the field of unconventional superconductivity.
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.
Download or read book High Tc Superconductors written by J. Dumas and published by Elsevier. This book was released on 1993-05-05 with total page 763 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wide range of progress in materials development [single crystals, ceramics, thin films, wire and tapes] is reported in the 169 papers in this volume. The main focus of the papers is in attaining a better understanding of the relationship between microstructure and electrical properties. Invited papers cover topics such as the effects of substitution and doping; multilayers; nanostructure characterisation; electric field effects in High Tc Superconductors [HTS]; surface stability; critical currents; flux pinning and magnetooptic imaging of flux patterns; effects of irradiation induced defects; properties and preparation of materials; microwave properties and electronic devices. A clearly broadened basis for understanding processes and mechanisms in [HTS] is portrayed. Appreciable progress has been achieved in the reproducible manufacturing of high quality materials supported by very efficient methods in microstructural analysis. This essential improvement is reflected in the increased number of practical devices encouraging the use of HTS in applications for electronics and power engineering, all of which are reviewed in depth in this work.
Download or read book Superconducting Thin Films of the Group II III Elements written by Donald L. Grigsby and published by . This book was released on 1970 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data are presented on the superconducting properties of thin films of beryllium, zinc, cadmium and mercury from the group II elements and aluminum, gallium, indium, lanthanum and thallium from the group III elements. These properties include transition temperature, superconducting energy gap, critical magnetic field and critical current when the data are available in the literature. (Author).
Download or read book Electromagnetic Absorption in the Copper Oxide Superconductors written by Frank J. Owens and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1987 a major breakthrough occurred in materials science. A new family of materials was discovered that became superconducting above the temperature at which nitrogen gas liquifies, namely, 77 K or –196°C. Within months of the discovery, a wide variety of experimental techniques were brought to bear in order to measure the properties of these materials and to gain an understanding of why they superconduct at such high temperatures. Among the techniques used were electromagnetic absorption in both the normal and the superconducting states. The measurements enabled the determination of a wide variety of properties, and in some instances led to the observation of new effects not seen by other measu- ments, such as the existence of weak-link microwave absorption at low dc magnetic fields. The number of different properties and the degree of detail that can be obtained from magnetic field- and temperature-dependent studies of electromagnetic abso- tion are not widely appreciated. For example, these measurements can provide information on the band gap, critical fields, the H–T irreversibility line, the amount of trapped flux, and even information about the symmetry of the wave function of the Cooper pairs. It is possible to use low dc magnetic field-induced absorption of microwaves with derivative detection to verify the presence of superconductivity in a matter of minutes, and the measurements are often more straightforward than others. For example, they do not require the physical contact with the sample that is necessary when using four-probe resistivity to detect superconductivity.
Download or read book Microwave Properties of Highly Oriented YBa 2 Cu 3 O 7 x Thin Films written by A. Inam and published by . This book was released on 1990 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most measurements of the microwave surface resistance (Rs) of polycrystalline pellets, single-crystals, and thin-films of the high-temperature superconductor YBa2Cu3O7-x (YBCO) have shown values far exceeding what is expected for a superconductor. The most likely reason for this is the losses arising from the presence of grain and phase boundaries in the samples that have been studied. Until now, the lowest surface resistances for YBCO thin films have been measured by Klein et al. on highly oriented laser-deposited thin films on SrTiO3 which had Tc's up to 88K. As a consequence of the relatively lower processing temperatures common to the laser deposition techniques, these films probably possess minimal granularity and better surfaces than most high-temperature-processed thin films. The above measurement was performed at 77K at a frequency of 86.i GHz with the film surface forming a wall of copper cavity; the Rs was found to be an order of magnitude lower than that for Cu at the same temperature and frequency and decidedly lower than Rs values measured for bulk polycrystalline, and surprisingly, even single-crystal YBCO samples. (JS).
