Bibliographic Details
| Title: |
Fermi Surface and Pseudogap Evolution in a Cuprate Superconductor. |
| Authors: |
Yang He, Yi Yin, Zech, M., Soumyanarayanan, Anjan, Yee, Michael M., Williams, Tess, Boyer, M. C., Chatterjee, Kamalesh, Wise, W. D., Zeljkovic, I., Takeshi Kondo, Takeuchi, T., Ikuta, H., Mistark, Peter, Markiewicz, Robert S., Bansil, Arun, Sachdev, Subir, Hudson, E. W., Hoffman, J. E. |
| Source: |
Science (pre-March 2025). 5/9/2014, Vol. 344 Issue 6184, p608-611. 4p. |
| Subjects: |
High temperature superconductors, Fermi surfaces, Cuprates, Superconductivity, Condensed matter physics |
| Abstract: |
The unclear relationship between cuprate superconductivity and the pseudogap state remains an impediment to understanding the high transition temperature (Tc) superconducting mechanism. Here, we used magnetic field-dependent scanning tunneling microscopy to provide phase-sensitive proof that d-wave superconductivity coexists with the pseudogap on the antinodal Fermi surface of an overdoped cuprate. Furthermore, by tracking the hole-doping (p) dependence of the quasi-particle interference pattern within a single bismuth-based cuprate family, we observed a Fermi surface reconstruction slightly below optimal doping, indicating a zero-field quantum phase transition in notable proximity to the maximum superconducting Tc. Surprisingly, this major reorganization of the system's underlying electronic structure has no effect on the smoothly evolving pseudogap. [ABSTRACT FROM AUTHOR] |
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| Database: |
Psychology and Behavioral Sciences Collection |
