Journal
SCIENCE
Volume 344, Issue 6184, Pages 608-611Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1248221
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Funding
- Air Force Office of Scientific Research [FA9550-06-1-0531]
- NSF [DMR-0847433, DMR-1103860]
- New York Community Trust-George Merck Fund
- Cottrell Scholarship
- Research Corporation
- NSF
- U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences [DE-FG02-07ER46352]
- DOE [DE-AC02-05CH11231]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0847433, 1341286] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1103860] Funding Source: National Science Foundation
- Grants-in-Aid for Scientific Research [24740218] Funding Source: KAKEN
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The unclear relationship between cuprate superconductivity and the pseudogap state remains an impediment to understanding the high transition temperature (T-c) 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 T-c. Surprisingly, this major reorganization of the system's underlying electronic structure has no effect on the smoothly evolving pseudogap.
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