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Author: Hawaii) Symposium on Chemical Aspects of High-Tc Superconductors (1989: Honolulu
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Languages : en
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Author: Hawaii) Symposium on Chemical Aspects of High-Tc Superconductors (1989: Honolulu
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: K. D. Carlson
Publisher: CRC Press
ISBN: 9782881244506
Category : Science
Languages : en
Pages : 424
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: William E. Hatfield
Publisher: CRC Press
ISBN: 1000103838
Category : Technology & Engineering
Languages : en
Pages : 408
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This book is a collection of proceedings of a symposium organized by the North Carolina Section of the American Chemical Society on the preparations, properties, and processing of high-temperature superconducting materials. The proceedings include papers of new results presented at the symposium.
Author: Takehiko Ishiguro
Publisher: Springer Science & Business Media
ISBN: 4431681175
Category : Technology & Engineering
Languages : en
Pages : 1070
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Book Description
Since the First International Symposium on Superconductivity (ISS '88) was held in Nagoya, Japan in 1988, significant advances have been achieved in a wide range of high temperature superconductivity research. Although the T c's of recently discovered oxide superconductors still do not exceed the record high value of 125K reported before that meeting, the enrichment in the variety of materials should prove useful to the investigation of the fundamental mechanism of superconductiv ity in these exotic materials. The discovery of the n-type superconducting oxides proved to oppose the previously held empirical fact that the charge carriers in all oxide superconductors were holes. In addition, optimization of the charge carrier density has been established as a technique to improve the superconducting proper ties of the previously known oxide materials. Many new experimental and theoreti cal advances have been made in understanding both the fundamental and the applied aspects of high temperature superconductivity. In this latter area, various new processing techniques have been investigated, and the critical current densities and other significant parameters of both bulk and thin film oxide superconductors are rapidly being improved. At this exciting stage of research in high temperature superconductivity, it is extremely important to provide an opportunity for researchers from industry, academia, government and other institutions around the world to freely exchange information and thus contribute to the further advancement of research.
Author: Toshizo Fujita
Publisher: Springer Science & Business Media
ISBN: 443168266X
Category : Science
Languages : en
Pages : 1359
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Book Description
More than seven years have passed since the dramatic breakthrough in the critical temperature for superconductors. During this period, a host of new materials have been discovered, and efforts have been stepped up in a variety of domains including device and systems applications, commercialization, and basic research on the properties of superconductive materials. Recent progress in areas such as bulk single crystal production, long-scale wire and tape produc tion, flywheel and bearing applications, and electronic device applications for thin films indicate that science and technology have been working hand in hand in this field, as has been the case in the research and development of semi conductors. This interdisciplinary "resonance" will be certain to lead to further outstanding advances in the years to come. It goes without saying that worldwide information exchange is the key to accelerating progress in superconductivity science and technology. As in previous years, the ISS '93 served as a venue where visions of future develop ments were shared in addition to presentations and extensive discussions on the most up-to-date research results. I hope that the Proceedings contained in this volume will be consulted not only as a summary of the current "state of the art" in high-Tc superconductivity but also as a stimulating source of ideas regarding future applications of superconductivity research.
Author: Yasuhiro Iye
Publisher: Springer
ISBN: 9783540549147
Category : Technology & Engineering
Languages : en
Pages : 578
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High temperature superconductivity is still one of the most discussed topicsin physics. "The Physics and Chemistry of Oxide Superconductors " collects together more than one hundred original contributions presented during the 2nd International Symposium of the Institute for Solid State Physics of the University of Tokyo. The main topics cover new insights into the basic mechanism of high temperature superconductivity, recent developments of new superconducting materials, the state of the art of thin film production,theoretical understanding of the electronic structures in this kind of material, theories for strongly correlated electron systems, and many physical and chemical effects.
Author: P. F. Bongers
Publisher:
ISBN:
Category : High temperature superconductors
Languages : en
Pages : 520
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Author: Koji Kajimura
Publisher: Springer Science & Business Media
ISBN: 4431681418
Category : Technology & Engineering
Languages : en
Pages : 1312
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Book Description
Since the discovery of high temperature superconductors, many new materials have been invented. In the last year, several new materials were also discovered, but their critical temperatures are still below lOOK. Precise physical and chemical work has made tremendous progress in the theoretical and experimental study of physical properties and carrier state characterizations. The de Haas van Alphen effect measurement showed the existence of a Fermi surface in YBCO. Flux dynamics is a well-known new problem in which flux creep and irreversibility line features are especially important for a fundamental understanding of the critical current and flux pinning. Flux pinning centers which are intentionally added using non-superconducting precipitates, neutrons, and protons, etc. increase critical currents to practical levels. The analysis of electric and magnetic properties are expected to reveal the pinning mechanism and also to further application development. As for wires and bulks, many melt-like sintering techniques have improved the material performance of critical current densities. A new seeding Quench-Melt Growth technique enlarged crystal size and increased the repulsion force. These melting processes, in conjunction with a mechanical strength improvement have been effectively introduced into wire fabrication in order to realize kilometer range wires and will put the oxide wires to practical use. Where thin film is con cerned, when many fabrication methods had been developed using the assistance effect of activated oxygen such as ozone and oxygen radicals, a high current 2 density of 106A/cm at 77K was reported.
Author: P. F. Bongers
Publisher:
ISBN:
Category :
Languages : en
Pages :
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