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arXiv · 1208.4426

Chemical Trend of Superconducting Transition Temperature in Hole-doped Delafossite of CuAlO_2, AgAlO_2 and AuAlO_2

Akitaka Nakanishi·Hiroshi Katayama-Yoshida
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Abstract

We have performed the first-principles calculations about the superconducting transition temperature T_c of hole-doped delafossite CuAlO_2, AgAlO_2 and AuAlO_2. Calculated T_c are about 50 K(CuAlO_2), 40 K(AgAlO_2) and 3 K(AuAlO_2) at maximum in the optimum hole-doping concentration. The low T_c of AuAlO_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. 2012-08-22. Chemical Trend of Superconducting Transition Temperature in Hole-doped Delafossite of CuAlO_2, AgAlO_2 and AuAlO_2. https://doi.org/10.1016/j.ssc.2012.08.017

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