Revised phase diagram of the high- Tc cuprate superconductor Pb-doped Bi2Sr2CaCu2O8+δ revealed by anisotropic transport measurements
Source abstract
Abstract
Although phase diagrams can be leveraged to investigate high transition temperature (high-${T}c$) superconductivity, the issue has not been discussed thoroughly. In this study, we elucidate the phase diagram of the overdoped side of high-${T}c$ 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. Our results indicate the importance of Mottness in high-${T}c$ superconductivity.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Physics of Superconductivity and Magnetism · Advanced Condensed Matter Physics · Magnetic properties of thin films
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Graduate School of Science and Technology, Hirosaki University, Hirosaki, Aomori 036-8561, Japan
Institute of Regional Innovation, Hirosaki University, Aomori 036-8561, Japan
Cryogenic Research Center, University of Tokyo, Bunkyo, Tokyo 113-0032, Japan
Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
Graduate School of Engineering, Iwate University, Morioka 020-8551, Japan
Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
Department of Physics, University of Colorado at Boulder, Boulder, Colorado 80309, USA
Funding
Hirosaki University · Japan Society for the Promotion of Science · U.S. Department of Energy
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