Revised phase diagram of the high- T c cuprate superconductor Pb-doped Bi 2 Sr 2 CaCu 2 O 8 + δ revealed by anisotropic transport measurements
Journal Article
·
· Physical Review. B
- Hirosaki University, Aomori (Japan)
- University of Tokyo, Bunkyo, Tokyo (Japan)
- Tohoku University, Sendai (Japan)
- Iwate University, Morioka (Japan)
- University of Tokyo, Kashiwa (Japan)
- University of Colorado, Boulder, CO (United States)
Although phase diagrams can be leveraged to investigate high transition temperature (high-Tc) superconductivity, the issue has not been discussed thoroughly. In this study, we elucidate the phase diagram of the overdoped side of high-Tc cuprates via systematic anisotropic transport measurements for Pb-doped Bi-2212 single crystals. We demonstrate that the characteristic temperatures of the “weak” pseudogap opening and electronic coherence cross each other at a critical doping level, while those of the “strong” pseudogap merges into that of superconducting fluctuations above the critical doping level. Her the results indicate the importance of Mottness in high-Tc superconductivity.
- Research Organization:
- Univ. of Colorado, Boulder, CO (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); Hirosaki University; Japan Society for the Promotion of Science (JSPS)
- Grant/Contract Number:
- FG02-03ER46066; FY2017-2018; 20K03849
- OSTI ID:
- 1979724
- Journal Information:
- Physical Review. B, Vol. 105, Issue 8; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
electrical conductivity
impurities in superconductors
pseudogap
superconducting fluctuations
superconducting gap
superconducting phase transition
cuprates
high-temperature superconductors
single crystal materials
annealing
Boltzmann theory
resistivity measurements
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
electrical conductivity
impurities in superconductors
pseudogap
superconducting fluctuations
superconducting gap
superconducting phase transition
cuprates
high-temperature superconductors
single crystal materials
annealing
Boltzmann theory
resistivity measurements