Specific Heat and Upper Critical Field of Sc5Ir4Si10 Superconductor
Sun, Yue · Ding, Yi · Gu, Dongmei · Zhuang, Jinchen · Shi, Zhixiang · Tamegai, Tsuyoshi
Original · EN
Temperature and magnetic field dependent specific heat of textured Sc5Ir4Si10 superconductor was investigated in detail. Based on the fitting of zero-field electronic specific heat by different gap structures as well as the discussion on field-induced specific heat coefficient, Sc5Ir4Si10 is proved to be an anisotropic s-wave superconductor with a gap anisotropy of 0.53. The anisotropy of upper critical field suggests the weakly one-dimensional Fermi surface, and the value is consistent with the gap anisotropy result obtained from the specific heat data.
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