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...
| 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: | |
| Weitere Verfasser: | , , |
| 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 |
| Zusammenfassung: | 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. |
|---|---|
| ISSN: | 10916490 |