Advances In Superconductivity Vii

Author : Kaoru Yamafuji,Tadataka Morishita
Publisher : Springer Science & Business Media
Page : 1339 pages
File Size : 43,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9784431685357

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Advances in Superconductivity VII by Kaoru Yamafuji,Tadataka Morishita Pdf

The field of high-temperature superconductivity has encouraged an inter disciplinary approach to research. It has required significant cooperation and collaboration among researchers, each of whom has brought to it a rich variety of experience from many other fields. Recently, great improvements have been made in the quality of research. The subject has matured and been launched into the next stage through the resonance between science and technology. The current progress of materials processing and engineering in this field is analogous to that previously seen in the development of semiconductors. These include the appearance of materials taking the place of YBa2Cu307 owing to their improved properties (higher critical temperatures and stronger flux pin ning) in which rare earth ions with large radii (La, Nd, Sm) substitute for Y; the development of technology enabling growth control on the nanometer scale; and precise and reproducible measurements that can be used as rigorous tests of theoretical models, which in turn are expected to lead to the develop ment of new devices. For further progress in high-T research, academics and c technologists must pool their knowledge and experience. I hope that this volume will promote that goal by providing the reader with the latest results of high-temperature superconductor research and will stimulate further discussion and collaboration.

Author : Kaoru Yamafuji,Tadataka Morishita
Publisher : Unknown
Page : 606 pages
File Size : 46,8 Mb
Release : 1995-06-01
Category : Flux pinning
ISBN : 4431685367

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Advances in Superconductivity VII by Kaoru Yamafuji,Tadataka Morishita Pdf

The Seventh International Symposium on Superconductivity brought together researchers at the forefront of all fields such as physics, chemistry, materials, production engineering, and electronic and electrical engineering, once again underlining the interdisciplinary nature of high-temperature superconductivity. Speakers shared their latest findings in the fundamental physics and chemistry; superconductors in the form of individual devices and systems. This comprehensive volume will prove indispensable for all who are involved in high-temperature superconductivity research.

Author : Hisao Hayakawa,Youichi Enomoto
Publisher : Springer Science & Business Media
Page : 1394 pages
File Size : 40,8 Mb
Release : 2013-11-11
Category : Technology & Engineering
ISBN : 9784431668718

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Advances in Superconductivity VIII by Hisao Hayakawa,Youichi Enomoto Pdf

Since the discovery of superconductivity with trans1tton temperatures above 77 K, concentrated research activities toward the exploration of practical applica tions of these materials have been carried out. Currently, a remarkable improve ment in superconducting properties has been achieved due to the fine optimization of fabrication processes, and this has attracted industrial interest for future applications. In the case of NdBa Cu 0 materials, a new pinning mecha 2 3 7 nism was found which enhances the critical current under applied magnetic fields. In single crystals of these materials, oxygen control results in an increase in the growth rate. The metalorganic chemical vapor deposition (MOCVD) film quality has been improved by using a new liquid raw material. Simultaneously, real demands from the viewpoint of the market start to be a motivation force, es pecially in electronics application where some products are already being sold. At the same time, interesting physical properlies have been obtained from a new superconducting single crystal which has a layered perovskite structure without copper. In addition, various precision measurement techniques have confirmed the d-wave mechanism and the existence of intrinsicJosephson junctions in single crystals. These new phenomena challenge the existing theoretical models but also open the way for new applications. These significant areas of progress in materials science have led high-Tc super conductivity research into the next phase of activity, while fundamental research continues to be very important. I sincerely hope that this volume will give further impetus to this development.

Author : N. Koshizuka,S. Tajima
Publisher : Springer Science & Business Media
Page : 1566 pages
File Size : 48,5 Mb
Release : 2013-11-11
Category : Technology & Engineering
ISBN : 9784431668749

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Advances in Superconductivity XI by N. Koshizuka,S. Tajima Pdf

The 11th International Symposium on Superconductivity was held November 16-19, 1998, in Fukuoka, Japan. Convened annually since 1988, the symposium covers the whole field of superconductivity from fundamental physics and chemistry to new applications. At the 11th Symposium, there was increased interest reported in the development of trial devices using bismuth wires and yttrium-based bulk materials. Among the presentations were those that clearly defined the development targets for next-generation yttrium-based wires and bulk materials and single-flux quantum (SFQ) circuits. Other popular topics were high-temperature superconductivity applications such as SQUIDs, microwave filters, and cryocooler-cooled magnets. With more than 600 participants from 18 countries, the symposium provided an excellent forum for exchanges of the most recent information in the field of superconductivity.

Author : Kozo Osamura,Izumi Hirabayashi
Publisher : Springer Science & Business Media
Page : 1478 pages
File Size : 43,8 Mb
Release : 2013-11-11
Category : Technology & Engineering
ISBN : 9784431668794

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Advances in Superconductivity X by Kozo Osamura,Izumi Hirabayashi Pdf

The International Symposium on Superconductivity, which has been held annu ally since 1988, is a forum for presenting the most up-to-date information about a broad range of research and development in superconductivity, from funda mental aspects to applications. More than 10 years have passed since the discovery of oxide superconductors and since various developments of applications began. It may be said that the prospects for application of oxide superconductors recently have opened up. Great progress has been made toward practical use, for example, of the flywheel, which uses bulk materials, and the high-performance cryo-cooled magnet made of bismuth wire. These were the results of persistent efforts to develop materials from the viewpoint of materials science and engineering. Also important is the progress in comprehensive understanding of high temperature superconductivity. Unique electronic properties of cuprates such as the non-Fermi liquid normal state, spin-charge separation, spin gap, and d-wave symmetry were discussed at the symposium, as were the unique electromagnetic properties resulting from the low dimensionality of cuprates. In the field of new superconductors, many exotic materials have been discovered since 1986. A decade of work with cuprate superconductors is reviewed in this proceedings, and several of the newest materials are presented. These papers will be instructive for many researchers and for students who are to enter this field.

Author : Toshizo Fujita,Yuh Shiohara
Publisher : Springer Science & Business Media
Page : 1359 pages
File Size : 49,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9784431682660

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Advances in Superconductivity VI by Toshizo Fujita,Yuh Shiohara Pdf

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 : J. Klamut,B.W. Veal,B.M. Dabrowski,P.W. Klamut,M. Kazimierski
Publisher : Springer
Page : 280 pages
File Size : 46,6 Mb
Release : 2008-01-11
Category : Science
ISBN : 9783540465119

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New Developments in High Temperature Superconductivity by J. Klamut,B.W. Veal,B.M. Dabrowski,P.W. Klamut,M. Kazimierski Pdf

This volume contains the proceedings of The Second Polish-US Conf- ence on High Temperature Superconductivity which was held August 18-21, 1998 in Karpacz, Poland. The conference followed The First Polish-US C- ference on High Temperature Superconductivity organized in 1995, proce- ings of which were published by Springer-Verlag in 1996 (Recent Devel- ments in High Temperature Superconductivity, Lecture Notes in Physics 475). High Temperature Superconductivity (HTSC) in complex copper oxides has become a household name after twelve years of intense research following its discovery in 1986 by J. G. Bednorz and K. A. Miiller. Because of the rapid growth of the HTSC field, there is a need for periodic summary and conden- tion both for scientists working in the field and, especially, for young resear- ers entering the field of oxide materials. Following the First Conference, it was recognized that an extended format of lectures perfectly satisfied that need, providing adequate time for experts from the international community to fully introduce and develop complex ideas. Thus, the format of the Second Conference brought together by cooperating scientists from the Institute of Low Temperature and Structure Research of the Polish Academy of Science at Wroctaw, Northern Illinois University, and Argonne National Laboratory remained mostly unchanged. Again, we were delighted to receive enthusiastic responses from distinguished US and Polish scientists who were invited to p- ticipate.

Author : J. Deaver,B.S. Deaver,J. Ruvalds
Publisher : Springer Science & Business Media
Page : 527 pages
File Size : 43,9 Mb
Release : 2013-06-29
Category : Technology & Engineering
ISBN : 9781461399544

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Advances in Superconductivity by J. Deaver,B.S. Deaver,J. Ruvalds Pdf

The Advanced Study Institute on "Advances in Superconductivity" was held at the Ettore Majorana Centre for Scientific Culture in Erice, Sicily, during July 3 to July 15, 1982. This Institute was the third course of the International School of Low Tempera ture Physics, which was established at the Centre in 1977 with the guidance and inspiration of T. Regge and A. Zichichi. The 1982 Course was centered on a topic which brought together fundamental basic research and the most recent promising technological applications. Accordingly, the participants represented a wide spectrum of industrial and government laboratories, as well as universities from various countries. The program of topics and speakers was developed with the advice of the Organizing Committee, composed of H. Frohlich, T. Regge, B. Stritzker, and L. Testardi. This Institute emphasized recent developments in the science and technology of superconductivity. A historical perspective was provided by H. Frohlich, whose lectures recall the earliest discoveries and theoretical attempts to understand superconductivity. Ironically, his early suggestion of the electron-phonon coupling as a key to superconductivity was met with initial widespread skepticism. Later, the development of field theory methods for solid state physics problems, and the evolution of the BCS theory has led to a seemingly unanimous concensus regarding the e1ectron phonon mechanism as the predominant source of superconductivity in known materials. Experimental studies of superconductivity exemplify the strong interplay of science and technology in many ways.

Author : Oliver A. Chang
Publisher : Nova Publishers
Page : 220 pages
File Size : 49,5 Mb
Release : 2008
Category : Science
ISBN : 1600216943

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Progress in Superconductivity Research by Oliver A. Chang Pdf

This book presents state-of-the art research on superconductivity which is the ability of certain materials to conduct electrical current with no resistance and extremely low losses. High temperature superconductors, such as La2-xSrxCuOx (Tc=40K) and YBa2Cu3O7-x (Tc=90K), were discovered in 1987 and have been actively studied since. In spite of an intense, world-wide, research effort during this time, a complete understanding of the copper oxide (cuprate) materials is still lacking. Many fundamental questions are unanswered, particularly the mechanism by which high-Tc superconductivity occurs. More broadly, the cuprates are in a class of solids with strong electron-electron interactions. An understanding of such "strongly correlated" solids is perhaps the major unsolved problem of condensed matter physics with over ten thousand researchers working on this topic.

Author : S. L. Kakani,C. Hemrajani
Publisher : Unknown
Page : 171 pages
File Size : 50,9 Mb
Release : 1990
Category : High temperature superconductivity
ISBN : 0894645420

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Recent Advances in Superconductivity by S. L. Kakani,C. Hemrajani Pdf

Author : A. V. Narlikar
Publisher : Springer Science & Business Media
Page : 536 pages
File Size : 53,6 Mb
Release : 2004
Category : Science
ISBN : 354040631X

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High Temperature Superconductivity 1 by A. V. Narlikar Pdf

In contrast to research on the fundamental mechanisms of High-Temperature Superconductivity, in recent years we have seen enormous developments in the fabrication and application of High-Tc-superconductors. The two volumes of High Temperature Superconductivity provide a survey of the state of the technology and engineering applications of these materials. They comprise extended original research papers and technical review articles written by physicists, chemists, materials scientists and engineers, all of them noted experts in their fields. The interdisciplinary and strictly application-oriented coverage should benefit graduate students and academic researchers in the mentioned areas as well as industrial experts. Volume 1 "Materials" focuses on major technical advancements in High-Tc materials processing for applications. Volume 2 "Engineering Applications" covers numerous application areas where High-Tc superconductors are making tremendous impact.

Author : Sadao Nakajima,Masato Murakami
Publisher : Springer
Page : 696 pages
File Size : 55,6 Mb
Release : 1997-09
Category : Science
ISBN : CORNELL:31924084288483

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Advances in Superconductivity IX by Sadao Nakajima,Masato Murakami Pdf

C axis Current I ~ . The (11 0) thick homoepitaxial film of 320 nm -------~ ~-=-=--==---==--==--==--- shows a very good surface flatness, which --------·· sJ;1 0] suggests the unique (110) atomic plane helps 2- A [1 1 OJ dimensional epitaxial growth of YBCO films, and shows excellent high Tc. The resultant 1. 0 surface morphology of YBCO is quite different Q ,. -- R(270)=1. 60 m 0 from the (110) heteroepitaxial films of similar 0 0. 0 " thickness [11). In the case of heteroepitaxy ~ . ,,_. 1. 0 irrespective of c-axis [ 12] or a-axis oriented ~ ~. . ,. R(270)=3. 71 m 0 films [5), only thin films show flat surfaces, g 0. 0 . . Tc=92. 3K "' which, however, give usually a degraded Tc due -~ 1. 0 v v I - to lattice mismatching. In conclusion, we have ::1. ,. . . . . R(270)=31. 9 mO succeeded to grow high-quality (11 0) YBCO ~ YBCO film . . Tc=90. 7 K 0. 0 ·;:: YBCO(IIO) 1 0 ·d·--~ YBCO thinfilms on (11 0) YBCO single crystal § substrate ~Xtt=u 1. 0 substra substrates with very flat surfaces and high Tc's. :£ R(270)=40. 1 m 0 0. 0 LLLLL. J. . . . LL~. t-J' L-Tc=9LWO. L-! L-K LLLLL. . . . L. . I. . . . l. . . . L. L. L. J. . . . . L. L. l. . . J 50 100 150 200 250 300 0 ACKNOWLEDGMENTS Temperature (K) One of the authors (T. U. ) would like to thank Fig.

Author : Barry P. Martins
Publisher : Nova Publishers
Page : 366 pages
File Size : 54,9 Mb
Release : 2007
Category : Technology & Engineering
ISBN : 1600214622

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Recent Developments in Superconductivity Research by Barry P. Martins Pdf

Superconductivity is the ability of certain materials to conduct electrical current with no resistance and extremely low losses. High temperature superconductors, such as La2-xSrxCuOx (Tc=40K) and YBa2Cu3O7-x (Tc=90K), were discovered in 1987 and have been actively studied since. In spite of an intense, world-wide, research effort during this time, a complete understanding of the copper oxide (cuprate) materials is still lacking. Many fundamental questions are unanswered, particularly the mechanism by which high-Tc superconductivity occurs. More broadly, the cuprates are in a class of solids with strong electron-electron interactions. An understanding of such "strongly correlated" solids is perhaps the major unsolved problem of condensed matter physics with over ten thousand researchers working on this topic. High-Tc superconductors also have significant potential for applications in technologies ranging from electric power generation and transmission to digital electronics. This ability to carry large amounts of current can be applied to electric power devices such as motors and generators, and to electricity transmission in power lines. For example, superconductors can carry as much as 100 times the amount of electricity of ordinary copper or aluminium wires of the same size. Many universities, research institutes and companies are working to develop high-Tc superconductivity applications and considerable progress has been made. This volume brings together new leading-edge research in the field.

Author : D Andreone,R S Gonelli,E Mezzetti
Publisher : World Scientific
Page : 365 pages
File Size : 51,6 Mb
Release : 1993-03-30
Category : Electronic
ISBN : 9789814553407

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Advances In High Temperature Superconductivity by D Andreone,R S Gonelli,E Mezzetti Pdf

Author : Yoshichika Bando,Hisao Yamauchi
Publisher : Springer Science & Business Media
Page : 1319 pages
File Size : 48,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9784431683056

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Advances in Superconductivity V by Yoshichika Bando,Hisao Yamauchi Pdf

This book covers all research fields in high Tc Superconductivity. Breakthrougs in the single crystal growth of a monolithic device leads to a new technology.