Download or read book Oxygen Disorder Effects in High Tc Superconductors written by Ivan K. Schuller and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers in this book represent the proceedings for the International Conference on Oxygen Disorder Effects in High~Tc Superconductors, held April 18-21, 1989 at the International Centre for Theoretical Physics, Trieste, Italy. It was recognized very early in the field of ceramic superconductors that oxygen plays a crucial role as far as the physical properties of these ma terials are concerned. The preparation requires special heating and cooling cycles which allow proper uptake of oxygen, relationships were found between the oxygen concentration and the superconducting transition temperature in many of the compounds and quite recently it was recognized that many (if not all) of the compounds present oxygen ordering in the intercalating planes. Moreover, it seems that the presence of superconductivity is strongly correlated with the presence of orthorhombic phases although several groups have also claimed the presence of superconductivity in tetragonal phases. Whether oxygen ordering plays or not a crucial role for the superconductivity remains to be seen. However it is clear that the ordering of oxygens and their thermodynamic properties is an interesting subject on its own right. All these reasons led us to organize a Conference on Oxygen Disorder Effects in High-Tc Superconductors in attempt to identify unsolved problems and to have an open discussion of the presently known facts.
Download or read book Oxygen Disorder Effects in High Tc Superconductors written by Ivan K Schuller and published by . This book was released on 1990-03-01 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oxygen Disorder Effects in High Tc Superconductors written by Ivan K. Schuller and published by Springer. This book was released on 2011-10-08 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers in this book represent the proceedings for the International Conference on Oxygen Disorder Effects in High~Tc Superconductors, held April 18-21, 1989 at the International Centre for Theoretical Physics, Trieste, Italy. It was recognized very early in the field of ceramic superconductors that oxygen plays a crucial role as far as the physical properties of these ma terials are concerned. The preparation requires special heating and cooling cycles which allow proper uptake of oxygen, relationships were found between the oxygen concentration and the superconducting transition temperature in many of the compounds and quite recently it was recognized that many (if not all) of the compounds present oxygen ordering in the intercalating planes. Moreover, it seems that the presence of superconductivity is strongly correlated with the presence of orthorhombic phases although several groups have also claimed the presence of superconductivity in tetragonal phases. Whether oxygen ordering plays or not a crucial role for the superconductivity remains to be seen. However it is clear that the ordering of oxygens and their thermodynamic properties is an interesting subject on its own right. All these reasons led us to organize a Conference on Oxygen Disorder Effects in High-Tc Superconductors in attempt to identify unsolved problems and to have an open discussion of the presently known facts.
Download or read book Oxygen Disorder Effects in High Temperature Y Ba Cu O Superconductor written by Suntao Yang and published by . This book was released on 1992 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lattice Effects In High Tc Superconductors Proceedings Of The Conference written by T Egami and published by World Scientific. This book was released on 1992-12-21 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of the workshop is the role of crystal lattices, i.e. atomic structure, phonons, lattice distortions, in the mechanism of high temperature superconductivity in oxides. In spite of the intense research effort during the last five years the mechanism of high temperature superconductivity still remains unknown. While earlier theories forcused primarily on the role of magnetic interaction, recent experimental results strongly suggest that anharmonic local atomic displacements, in particular those induced by charge carriers, are critically involved in creating high temperature superconductivity. In this workshop, experimentalists and theoreticians address this issue with the hope of stimulating real progress in this area.
Download or read book Oxygen Diffusion and Dynamical Disorder in High Tc Superconductors written by Robert I. Shekhter and published by . This book was released on 1993 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electronic Properties of High Tc Superconductors written by Hans Kuzmany and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Winter School on Electronic Properties of High-Temperature Superconductors, held between March 7-14, 1992, in Kirchberg, (Tyrol) Austria, was the sixth in a series of meetings to be held at this venue. Four of the earlier meetings were dedicated to issues in the field of conducting polymers, while the winter school held in 1990 was devoted to the new discipline of high-T c superconductivity. This year's meeting constituted a forum not only for the large number of scientists engaged in high-Tc research, but also for those involved in the new and exciting field of fullerenes. Many of the issues raised during the earlier winter schools on conducting polymers, and the last one on high-T c superconductivity, have taken on a new significance in the light of the discovery of superconducting C materials. 60 The Kirchberg meetings are organized in the style of a school where expe rienced scientists from universities, research laboratories and industry have the opportunity to discuss their most recent results, and where students and young scientists can learn about the present status of research and applications from some of the most eminent workers in their field. In common with the previous winter school on high-Tc superconductors, the of the cuprate superconductors. present one focused on the electronic properties In addition, consideration was given to related compounds which are relevant to the understanding of the electronic structure of the cuprates in the normal state, to other oxide superconductors and to fulleride superconductors.
Download or read book High Tc Superconductor Materials written by E. Kaldis and published by Elsevier. This book was released on 2012-12-02 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dynamic developments in high-temperature superconductivity over the last three years has augmented the importance of materials research not only for applications, but also for the understanding of underlying physical phenomena. The discovery of new superconductors has opened up new facets of High Tc research, and the perfection of already known materials has enabled reliable physical measurements to be carried out, providing a foundation for theoretical models. The papers in this volume present an overview of the recent developments in the field of High Tc-materials research. One of the highlights of this meeting was the plenary lecture by the Nobel laureate K. Alex Müller on the importance of the apical oxygen phenomena which are strongly connected with Tc changes.
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 The Effects of R3 Ions and Oxygen Deficiency in High T cRBa2CU3O7 d e l t a Superconductors written by Bo Wha Lee and published by . This book was released on 1990 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book High Tc Superconductors Magnetic Interactions Proceedings Of The Workshop written by Lawrence H Bennett and published by World Scientific. This book was released on 1989-04-01 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Workshop addresses the role of magnetic interactions in the various aspects of high Tc superconducting materials, including the fundamental nature of the elementary excitations and their effect on the measured microscopic and macroscopic magnetic properties of these materials. Applications involving the magnetic behaviour of high Tc superconductors is a special feature of this Workshop.
Download or read book High Temperature Superconductivity written by Jeffrey W. Lynn and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most exciting developments in modern physics has been the discovery of the new class of oxide materials with high superconducting transition temperature. Systems with Tc well above liquid nitrogen temperature are already a reality and higher Tc's are anticipated. Indeed, the idea of a room-temperature superconductor, which just a short time ago was considered science fiction, appears to be a distinctly possible outcome of materials research. To address the need to train students and scientists for research in this exciting field, Jeffrey W. Lynn and colleagues at the University of Maryland, College Park, as well as other superconductivity experts from around the U.S., taught a graduate-level course in the fall of 1987, from which the chapters in this book were drawn. Subjects included are: Survey of superconductivity (J. Lynn).- The theory of type-II superconductivity (D. Belitz).- The Josephson effect (P. Ferrell).- Crystallography (A. Santoro).- Electronic structure (C.P. Wang).- Magnetic properties and interactions (J. Lynn).- Synthesis and diamagnetic properties (R. Shelton).- Electron pairing (P. Allen).- Superconducting devices (F. Bedard).- Superconducting properties (J. Crow, N.-P. Ong).
Download or read book International Workshop on Ion Beam Modification and Processing of High Tc Superconductors Physics and Devices Program and Abstracts written by HARWELL LABS (Great Britain) and published by . This book was released on 1989 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Partial contents: 'Why is Superconducting Technology More Difficult the Second Time Around?', 'Role of Ion Beams in Superconductor Research', 'Transport Properties of High Tc Superconductors', 'Irradiation Induced and Substitutional Disorder Effects in YBa2Cu3O7', 'Anomalous Thermal Vibrational Behavior in (U, Er)Ba2Cu3O(7-delta)', 'Defect Phenomena in Perovskites and Related Oxides: Parallels Between Superconducting and Conventional Oxides', 'Oxygen Disorder Effects in High Tc Superconductors', 'Magnetization of Neutron Irradiated YBCO Single Crystals', 'Transport Properties in Low Temperature Electron Irradiated High-Tc Superconductors', 'Stochastic Description of Compounds Stability Under Irradiation: Temperature, Flux and Cascade Size Effects', 'The Nature of Ion-Beam Induced Disorder in HTSC', 'Electron Microscopy of Defects and Interfaces in High-Tc Superconductors, Ion Beam Lithography of Thin Film High Temperature Superconductors, Ion Implantation-Making and Doping of Superconductors, 'Formation and Evolution of Ion Bean-Induced Extended Defects in RBaCuO and BiCaSrCuO Superconductors: In Situ TEM Studies', Perspectives on High Temperature Superconducting Electronics, Laser Beam Patterning of YBa2CuO7 Thin Films, and 'Thin Film Preparation by Laser Ablation and Sputtering Without Post-Annealing, Abstracts, Symposia. (JHD).
Download or read book Studies of High Temperature Superconductors written by A. V. Narlikar and published by Nova Publishers. This book was released on 1993 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Six papers by physicists from the Japan, India, Brazil and the US address some of the broad frontal issues of superconductivity, which include the mechanisms of high-temperature superconductivity, extra-high-temperature phenomena, the normal state pseudogap, the observations of the isotope effect in a host of different superconducting systems and their explanations, and the unusual features of strongly correlated electron systems like heavy fermions. Two extended papers explore the importance of positron annihilation and using electron spin resonance techniques to study superconducting materials. The treatments should be accessible to working scientists and engineers and to graduate students of physics, chemistry, materials science, solid-state electronics, and other disciplines.
Download or read book High Tc Superconductors written by P.F. Bongers and published by Elsevier. This book was released on 2012-12-02 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers in this two volume set provide the latest information on research and development in the field of high Tc-materials. Special emphasis is placed on methods of preparation and microstructural characterization for both thin films and single crystals. Considerable attention is also paid to the potential applications of thin films and bulk materials. The following topics are covered in detail: New superconductors; Relations between structure and/or substitution and superconductivity in ternary Cu-oxides; Single crystals, microstructure; Thin films, preparation and properties; Technical applications.
Download or read book High Tc Superconductors written by A. Bianconi and published by Elsevier. This book was released on 2016-10-27 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are many theories at present which attempt to explain the property of high-temperature superconductivity in the new breed of superconducting ceramics - however, the electronic structure of these materials is not yet fully understood. The 29 papers in this work present the results from the use of a wide range of spectroscopic techniques, such as Raman, nuclear magnetic resonance and photoemission, in investigating the electronic structure of the new cuprate perovskites.
