Determining the Underlying Fermi Surface of Strongly Correlated Superconductors

The notion of a Fermi surface (FS) is one of the most ingenious concepts developed by solid-state physicists during the past century. It plays a central role in our understanding of interacting electron systems. Extraordinary efforts have been undertaken, by both experiment and theory, to reveal the...

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Bibliographische Detailangaben
Veröffentlicht in:	Proceedings of the National Academy of Sciences of the United States of America. - National Academy of Sciences of the United States of America. - 103(2006), 39, Seite 14298-14301
1. Verfasser:	Gros, Claudius (VerfasserIn)
Weitere Verfasser:	Edegger, Bernhard, Muthukumar, V. N., Anderson, P. W.
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2006
Zugriff auf das übergeordnete Werk:	Proceedings of the National Academy of Sciences of the United States of America
Schlagworte:	strong correlation renormalized mean-field theory high-temperature superconductors Applied sciences Mathematics Physical sciences Behavioral sciences


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100	1		\|a Gros, Claudius \|e verfasserin \|4 aut
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520			\|a The notion of a Fermi surface (FS) is one of the most ingenious concepts developed by solid-state physicists during the past century. It plays a central role in our understanding of interacting electron systems. Extraordinary efforts have been undertaken, by both experiment and theory, to reveal the FS of the high-temperature superconductors, the most prominent class of strongly correlated superconductors. Here, we discuss some of the prevalent methods used to determine the FS and show that they generally lead to erroneous results close to half-filling and at low temperatures, because of the large superconducting gap (pseudogap) below (above) the superconducting transition temperature. Our findings provide a perspective on the interplay between strong correlations and superconductivity and highlight the importance of strong coupling theories for the characterization and determination of the underlying FS in angle-resolved photoemission spectroscopy experiments.
540			\|a Copyright 2006 National Academy of Sciences of the United States of America
650		4	\|a strong correlation
650		4	\|a renormalized mean-field theory
650		4	\|a high-temperature superconductors
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650		4	\|a Mathematics \|x Pure mathematics \|x Geometry \|x Surface geometry \|x Mathematical surfaces
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650		4	\|a Physical sciences \|x Physics
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650		4	\|a Mathematics \|x Pure mathematics \|x Calculus \|x Differential calculus \|x Greens function
650		4	\|a Applied sciences \|x Materials science \|x Materials \|x Superconductors
650		4	\|a Applied sciences \|x Engineering \|x Industrial engineering \|x Manufacturing engineering \|x Manufacturing \|x Doping
650		4	\|a Mathematics \|x Pure mathematics \|x Geometry \|x Surface geometry \|x Mathematical surfaces
650		4	\|a Physical sciences \|x Physics \|x Condensed matter physics \|x Fermi surfaces
650		4	\|a Behavioral sciences \|x Psychology \|x Cognitive psychology \|x Emotion \|x Emotional states \|x Frustration
650		4	\|a Physical sciences \|x Physics
650		4	\|a Mathematics \|x Applied mathematics \|x Statistics \|x Applied statistics \|x Descriptive statistics \|x Correlations
650		4	\|a Behavioral sciences \|x Anthropology \|x Applied anthropology \|x Cultural anthropology \|x Cultural institutions \|x Archives
650		4	\|a Physical sciences \|x Physics \|x Microphysics \|x Particle physics \|x Particle emission \|x Electron emission \|x Photoelectric emission
650		4	\|a Mathematics \|x Pure mathematics \|x Calculus \|x Differential calculus \|x Greens function
655		4	\|a research-article
700	1		\|a Edegger, Bernhard \|e verfasserin \|4 aut
700	1		\|a Muthukumar, V. N. \|e verfasserin \|4 aut
700	1		\|a Anderson, P. W. \|e verfasserin \|4 aut
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