We investigated the material parameters of several single-layer cuprates, including those with fluorinated buffer layers, with the aim of identifying possible high-temperature superconductors. To evaluate the material parameters, we use the Wannierization techniques and the constrained random phase approximation. The obtained single-band Hubbard models are studied using the fluctuation–exchange approximation, and the superconductivity is studied by solving the linearized Eliashberg equation. Comparison among several cuprates reveals unknown high-T_c superconductors. In, Ga, Al, and Cd compounds in particular show the potential to exhibit higher-T_c superconductivity than Hg1201.

中文翻译：

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潜在的高温超导单层铜酸盐的材料优化

我们研究了几种单层铜酸盐的材料参数，包括那些具有氟化缓冲层的铜酸盐，目的是确定可能的高温超导体。为了评估材料参数，我们使用了Wannierization技术和受约束的随机相位近似。使用涨落-交换近似值研究获得的单频带Hubbard模型，并通过解决线性化Eliashberg方程来研究超导性。几种铜酸盐的比较显示出未知的高T _c超导体。尤其是In，Ga，Al和Cd化合物显示出比Hg1201更高的T _c超导性的潜力。