期刊
PHYSICAL REVIEW B
卷 78, 期 20, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.78.205103
关键词
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资金
- Swiss National Science Foundation (through NCCR, MaNEP) [200020-105151, PBEZP2-122855]
- Ministry of Education and Science of Japan
- Swedish Research Council
- Paul Scherrer Institute, Villigen PSI, Switzerland
- X09LA
- Swiss National Science Foundation (SNF) [PBEZP2-122855] Funding Source: Swiss National Science Foundation (SNF)
An angle-resolved photoemission study of the scattering rate in the superconducting phase of the high-temperature superconductor La2-xSrxCuO4 with x=0.145 and x=0.17, as a function of binding energy and momentum, is presented. We observe that the scattering rate scales linearly with binding energy up to the high-energy scale E-1 similar to 0.4 eV. The scattering rate is found to be strongly anisotropic, with a minimum along the (0,0)-(pi,pi) direction. A possible connection to a quantum-critical point is discussed.
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