Phase Separation in Cuprate Superconductors: Proceedings of the Second International Workshop on "Phase Separation in Cuprate Superconductors" September 4-10, 1993, Cottbus, Germany - Hardcover

 
9783540576815: Phase Separation in Cuprate Superconductors: Proceedings of the Second International Workshop on "Phase Separation in Cuprate Superconductors" September 4-10, 1993, Cottbus, Germany
Hardcover
ISBN 10: 3540576819 ISBN 13: 9783540576815
Verlag: Springer-Verlag Berlin and Heidelberg GmbH & Co. K, 1994

Inhaltsangabe

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.

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Reseña del editor

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.

Reseña del editor

The contributions to this book are written by leading experts, including Nobel prize winner K.A. MA1/4ller. The high-Tc cuprates are materials that become superconducting when chemically or optically doped. The nature of the resulting phase and the mechanism of the superconductivity have, until recently, posed numerous questions. However, many of the key experimental and theoretical problems are now being solved and it is largely these advances that are presented here.

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Verlag
Springer-Verlag Berlin and Heidelberg GmbH & Co. K
Erscheinungsdatum
1994
Sprache
Englisch
ISBN 10 
3540576819
ISBN 13 
9783540576815
Einband
Tapa dura
Anzahl der Seiten
418
Herausgeber
Sigmund Ernst, Muller K. Alex, Mueller K.A.
Kontakt zum Hersteller
Nicht verfügbar
Verantwortliche Person
CMN Printpool Inh. Mathis Neumann
https://www.also.com/ec/cms5/en_6000/6000/index.jsp

Friedrich-Karl-Str. 9
Hamburg
Deutschland

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