Material Optimization of Potential High-Tc Superconducting Single-Layer Cuprates

被引：2

作者：

Teranishi, Shingo ^{[1
]}

Nishiguchi, Kazutaka ^{[2
]}

Kusakabe, Koichi ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn Sci, Dept Mat Engn Sci, Toyonaka, Osaka 5608531, Japan

[2] Osaka Univ, Grad Sch Sci, Dept Phys, Toyonaka, Osaka 5608531, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2021年 / 90卷 / 05期

基金：

日本学术振兴会;

关键词：

CONSERVING APPROXIMATIONS; ELECTRON-SYSTEMS; SERIES; N=4;

D O I：

10.7566/JPSJ.90.054705

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：5

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