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arXiv · 1402.0948

Chemical Trend of Superconducting Transition Temperature in Hole-doped CuBO$_2$, CuAlO$_2$, CuGaO$_2$ and CuInO$_2$

Akitaka Nakanishi·Hiroshi Katayama-Yoshida
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Abstract

We calculated the superconducting transition temperature $T_{\rm c}$ of hole-doped CuBO$_2$, CuAlO$_2$, CuGaO$_2$ and CuInO$_2$ using first-principles. The calculated $T_{\rm c}$ are about 50 K for CuAlO$_2$, 10 K for CuBO$_2$ and CuGaO$_2$ and 1 K for CuInO$_2$ at maximum in the optimum hole-doping concentration. The low $T_{\rm c}$ of CuInO$_2$ is attributed to the weak electron-phonon interaction caused by the low covalency and heavy atomic mass.

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Akitaka Nakanishi, Hiroshi Katayama-Yoshida. 2014-02-05. Chemical Trend of Superconducting Transition Temperature in Hole-doped CuBO$_2$, CuAlO$_2$, CuGaO$_2$ and CuInO$_2$. https://doi.org/10.7566/jpsj.85.094711

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