Superconductivity and Phase Stability of High Tc Copper Oxides
Author: Amit Prabhakar Marathe
Publisher:
Published: 1991
Total Pages: 184
ISBN-13:
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Author: Amit Prabhakar Marathe
Publisher:
Published: 1991
Total Pages: 184
ISBN-13:
DOWNLOAD EBOOKAuthor: Bernard Raveau
Publisher: Springer Science & Business Media
Published: 2013-03-12
Total Pages: 340
ISBN-13: 3642838928
DOWNLOAD EBOOKThe recent discovery of high-temperature superconductivity in copper based oxides is an event of major importance not only with respect to the physical phenomenon itself but also because it definitely shows that solid state chemistry, and especially the crystal chemistry of oxides, has a crucial place in the synthesis and understanding of new materials for future appli cations. The numerous papers published in the field of high Tc supercon ductors in the last five years demonstrate that the great complexity of these materials necessitates a close collaboration between physicists and solid state chemists. This book is based to a large extent on our experience of the crystal chemistry of copper oxides, which we have been studying in the laboratory for more than twelve years, but it also summarizes the main results which have been obtained for these compounds in the last five years relating to their spectacular superconducting properties. We have focused on the struc ture, chemical bonding and nonstoichiometry of these materials, bearing in mind that redox reactions are the key to the optimization of their supercon ducting properties, owing to the importance of the mixed valence of copper and its Jahn-Teller effect. We have also drawn on studies of extended defects by high-resolution electron microscopy and on their creation by ir radiation effects.
Author: Shin-ichi Uchida
Publisher: Springer
Published: 2014-11-20
Total Pages: 98
ISBN-13: 4431553002
DOWNLOAD EBOOKThis book presents an overview of material-specific factors that influence Tc and give rise to diverse Tc values for copper oxides and iron-based high- Tc superconductors on the basis of more than 25 years of experimental data, to most of which the author has made important contributions. The book then explains why both compounds are distinct from others with similar crystal structure and whether or not one can enhance Tc, which in turn gives a hint on the unresolved pairing mechanism. This is an unprecedented new approach to the problem of high-temperature superconductivity and thus will be inspiring to both specialists and non-specialists interested in this field. Readers will receive in-depth information on the past, present, and future of high-temperature superconductors, along with special, updated information on what the real highest Tc values are and particularly on the possibility of enhancing Tc for each member material, which is important for application. At this time, the highest Tc has not been improved for 20 years, and no new superconductors have been discovered for 5 years. This book will encourage researchers as well as graduate-course students not to give up on the challenges in the future of high- Tc superconductivity.
Author: Annette Bussmann-Holder
Publisher: Springer
Published: 2017-03-24
Total Pages: 324
ISBN-13: 3319526758
DOWNLOAD EBOOKAuthored by many of the world's leading experts on high-Tc superconductivity, this volume presents a panorama of ongoing research in the field, as well as insights into related multifunctional materials. The contributions cover many different and complementary aspects of the physics and materials challenges, with an emphasis on superconducting materials that have emerged since the discovery of the cuprate superconductors, for example pnictides, MgB2, H2S and other hydrides. Special attention is also paid to interface superconductivity. In addition to superconductors, the volume also addresses materials related to polar and multifunctional ground states, another class of materials that owes its discovery to Prof. Müller's ground-breaking research on SrTiO3.
Author:
Publisher:
Published: 1969
Total Pages:
ISBN-13:
DOWNLOAD EBOOKAuthor: Thomas Sheahen
Publisher: Springer Science & Business Media
Published: 2006-02-24
Total Pages: 578
ISBN-13: 0306470616
DOWNLOAD EBOOKDrawing from physics, mechanical engineering, electrical engineering, ceramics, and metallurgy, high-temperature superconductivity (HTSC) spans nearly the entire realm of materials science. This volume presents each of those disciplines at an introductory level, such that readers will ultimately be able to read the literature in the field.
Author: Yeoh Lee Moi
Publisher:
Published: 2011
Total Pages: 0
ISBN-13: 9781611225044
DOWNLOAD EBOOKThe discovery of superconductivity behaviour in ceramic materials based on copper oxide suggests that ceramic can be used as an insulator material. However, superconductivity mechanism-based copper oxides are still seen as mysterious and misunderstood by scientists, even though the search for materials with higher critical temperatures has been ongoing. This effort can be seen from the first discovery of superconductor in the critical temperature of mercury 4.2 K up to the highest critical temperature of 164 K in the copper oxide superconductors Hg-Ba-Ca-Cu-O in 1993. This book discusses the development of high temperature superconductors since the discovery of the first superconductor until now, as well as the basic properties of high temperature superconductor. In addition, it also describes various wet chemical methods in superconductors preparation.
Author: Nikolaĭ Maksimilianovich Plakida
Publisher:
Published: 1995
Total Pages: 248
ISBN-13:
DOWNLOAD EBOOKAuthor: Li-Chun Liáng
Publisher: Nova Publishers
Published: 2008
Total Pages: 248
ISBN-13: 9781604560831
DOWNLOAD EBOOKSuperconductivity 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, 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. This Publication presents new research on yttrium barium copper oxide superconductors, often abbreviated YBCO, which is a chemical compound with the formula YBa2Cu3O7. This material, a famous 'high-temperature superconductor', achieved prominence because it was the first material to superconduct above the boiling point of nitrogen. All materials developed before YBCO became superconducting only at temperatures near the boiling points of liquid helium or liquid hydrogen (Tb = 20.1 K). The significance of the discovery of YBCO is the breakthrough in the refrigerant used to cool the material to below the critical temperature.
Author: Hiroshi Kamimura
Publisher: Springer Science & Business Media
Published: 2005-05-06
Total Pages: 228
ISBN-13: 9783540251897
DOWNLOAD EBOOKThis is an advanced textbook for graduate students and researchers wishing to learn about high temperature superconductivity in copper oxides, in particular the Kamimura-Suwa (K-S) model. Because a number of models have been proposed since the discovery of high temperature superconductivity by Bednorz and Müller in 1986, the book first explains briefly the historical development that led to the K-S model. It then focuses on the physical background necessary to understand the K-S model and on the basic principles behind various physical phenomena such as electronic structures, electrical, thermal and optical properties, and the mechanism of high temperature superconductivity.