期刊
PHYSICAL REVIEW B
卷 106, 期 18, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.106.184516
关键词
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资金
- Max Planck Society
- Deutsche Forschungsgemeinschaft [SFB 1143, 247310070]
- ANR LABEX [ANR-10-LABX-0039-PALM]
We investigate the effect of in-plane uniaxial stress on Tc in the high-temperature superconductor YBa2Cu3O6.67. The response is highly anisotropic, with a flat Tc under compression along the b axis and a steep decrease under compression along the a axis. We propose that the suppression of superconductivity is due to competition with uniaxial charge density wave order.
We probe the effect on Tc of in-plane uniaxial stress applied to the high-temperature superconductor YBa2Cu3O6.67. We find a highly anisotropic response. Under compression along the b axis, which reduces the orthorhombicity of the CuO2 planes, Tc is broadly flat for stresses up to at least 1.7 GPa. Under compression along the a axis, Tc decreases steeply. For stresses beyond approximate to 1 GPa the decrease is quasilinear. We hypothesize that superconductivity is suppressed by competition with uniaxial charge density wave order, which has been found to onset at approximate to 1 GPa.
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