Phase Separation In Cuprate Superconductors - Proceedings Of The Workshop

Phase Separation In Cuprate Superconductors - Proceedings Of The Workshop

Author: Karl Alex Muller

Publisher: World Scientific

Published: 1993-01-08

Total Pages: 394

ISBN-13: 9814553514

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The main objective of this workshop was to review and discuss the electronic and chemical properties of layered cuprate superconductors. These are doped antiferromagnetic (AFM) insulators, and there is the possibility of a dynamic phase separation into metallic clusters and AFM areas. A clarification on the existence and the mechanism of such a phase separation is believed to be crucial for the understanding of high-Tc superconductivity in cuprates.On the one hand, theoretical and recent experimental indications in favor of this possibility were presented, on the other hand experimental papers expressing more skeptical views were also delivered. Related work on phase separations of chemical and structural origin was also included, followed by contributions on the question; “If phase separation is present, what is the pairing mechanism in the metallic clusters?”.


Phase Separation in Cuprate Superconductors

Phase Separation in Cuprate Superconductors

Author: Ernst Sigmund

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 417

ISBN-13: 364278805X

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Phase separation has become a fascinating subject in the discussion of cuprate superconductors. All these materials have layered structures containing CU02 planes as the most important building blocks. They are coupled only weakly so that the electronic properties show a nearly two-dimensional behaviour. Due to correlations the undoped compounds are insulators of the Mott Hubbard type exhibiting long-range antiferromagnetic order. Upon doping a rich scenario of physical phenomena appears: Even at low hole concentra tions the antiferromagnetic ordering temperature is reduced drastically and spin-glass behaviour as well as a hopping type conductivity can be observed. Further doping leads to metallic-like conductivity and below Tc to super conductivity. In this doping regime antiferromagnetic fluctuations are still observed. At very high charge carrier densities superconductivity is lost and the systems show pure metallic conduction without ,magnetic correlations. One of the most interesting phenomena in high-T c research is the interplay between magnetism and conductivity or superconductivity. Especially the behaviour of charge carriers in the antiferromagnetic background raises a number of open questions. Two scenarios become possible: the carriers tend to delocalize over the whole crystal forming a homogeneous state with band-like structure or they separate into hole-rich (conducting, superconducting) and hole-poor (insulating, antiferromagnetic) phases leading to an inhomogeneous structure.


From Quantum Paraelectric/Ferroelectric Perovskite Oxides to High Temperature Superconducting Copper Oxides -- In Honor of Professor K.A. Müller for His Lifework

From Quantum Paraelectric/Ferroelectric Perovskite Oxides to High Temperature Superconducting Copper Oxides -- In Honor of Professor K.A. Müller for His Lifework

Author: Annette Bussmann-Holder

Publisher: MDPI

Published: 2021-03-15

Total Pages: 312

ISBN-13: 3036504745

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With this book, we wish to honor the lifework of K. Alex Müller and present him with this book on the occasion of his 94th birthday. We are convinced that he will very much enjoy reading it. We would like to thank all contributors to this book, who addressed topics complementary and related to his work. The articles of the book represent the efforts in solid state physics – spanning more than 60 years – which have been groundbreaking in scientific and applied sciences. Many of the current hot topics are derived from this earlier work which has pioneered the way toward new experimental tools and/or refined techniques. From this point of view, the book presents, on one hand, a historical review and, on the other hand, a directory of possible future research.


Anharmonic Properties Of High-tc Cuprates - Proceedings Of The International Workshop

Anharmonic Properties Of High-tc Cuprates - Proceedings Of The International Workshop

Author: Dragan Mihailovic

Publisher: World Scientific

Published: 1995-06-29

Total Pages: 290

ISBN-13: 9814549541

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This volume deals with an important aspect of the physics of high-temperature superconductors. In recent years a wealth of experimental and theoretical work has accumulated on the subject of anharmonicity in connection to either superconductivity or lattice properties of superconducting oxides. The papers, by leading experts, are the proceedings of the first workshop dedicated to dealing with these issues.


High-Tc Superconductivity 1996

High-Tc Superconductivity 1996

Author: E. Kaldis

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 583

ISBN-13: 9401155542

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After an introduction by J.G. Bednorz, describing the discovery of high Tc superconductivity and its consequences, the book goes on to describe modern research, dealing with general problems, new materials and structures, phase separation, electronic homogeneities and related problems, and applications. Specific systems dealt with include the La-cuprates. the Bi-cuprates and the Y-cuprates and related compounds.


High-Tc Copper Oxide Superconductors and Related Novel Materials

High-Tc Copper Oxide Superconductors and Related Novel Materials

Author: Annette Bussmann-Holder

Publisher: Springer

Published: 2017-03-24

Total Pages: 324

ISBN-13: 3319526758

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Authored 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.


High Tc Superconductors and Related Transition Metal Oxides

High Tc Superconductors and Related Transition Metal Oxides

Author: Annette Bussmann-Holder

Publisher: Springer Science & Business Media

Published: 2007-03-29

Total Pages: 321

ISBN-13: 354071023X

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This book presents theoretical as well as experimental articles focused on recent new results in high temperature superconductivity. All contributors are high ranking scientists who have done major work to enhance the understanding of this phenomenon. A few articles deal with ferroelectricity and its applications. The book is dedicated to Prof. Dr. K. Alex Müller on his 80th birthday. During his scientific career he made major advances in the understanding of ferroelectricity.


High-Tc Superconductors and Related Materials

High-Tc Superconductors and Related Materials

Author: S.-L. Drechsler

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 568

ISBN-13: 9401007586

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A broad introduction to high Tc superconductors, their parent compounds and related novel materials, covering both fundamental questions of modern solid state physics (such as correlation effects, fluctuations, unconventional symmetry of superconducting order parameter) and applied problems related to short coherence length, grain boundaries and thin films. The information that can be derived from electron spectroscopy and optical measurements is illustrated and explained in detail. Descriptions widely employ the clear, relatively simple, phenomenological Ginzburg-Landau model of complex phenomena, such as vortex physics, vortex charge determination, plasmons in superconductors, Cooper pair mass, and wetting of surfaces. The first comprehensive reviews of several novel classes of materials are presented, including borocarbides and chain cuprates.


Physics, Materials And Applications - Proceedings Of The 10th Anniversary Hts Workshop

Physics, Materials And Applications - Proceedings Of The 10th Anniversary Hts Workshop

Author: Bertram Batlogg

Publisher: World Scientific

Published: 1996-12-15

Total Pages: 738

ISBN-13: 9814547654

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This volume commemorates the 10th anniversary of the discovery of high temperature superconductors (HTS). The historical framework and present status of HTS are reviewed, and the future of the field contemplated so that the HTS science can be unraveled and the HTS technology developed. This book contains the works of about 200 members of the international HTS community — from universities, government centers and laboratories, major industries and small businesses. It focuses on early and major new findings in the physics and mechanisms, materials and applications of HTS, with a projection to the emerging and future areas in science and technology.