Band structure of new layered superconductors BaRh2P2 and BaIr2P2

被引：7

作者：

Shein, I. R. ^{[1
]}

Ivanovskii, A. L. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Solid State Chem, Ural Div, Ekaterinburg 620041, Russia

来源：

JETP LETTERS | 2009年 / 89卷 / 07期

关键词：

HIGH-TEMPERATURE SUPERCONDUCTORS;

D O I：

10.1134/S0021364009070108

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The results of ab initio FLAPW-GGA computations of the band structure of two new layered low-temperature superconductors BaRh2P2 and BaIr2P2 (with a ThCr2Si2 tetragonal structure) are presented. As distinct from the family of the isostructural FeAs superconductors, they feature the complete replacement of the magnetic (Fe) metal by the nonmagnetic 4d (Rh) and 5d (Ir) metals. For BaRh2P2 and BaIr2P2, the energy bands, the distributions of the densities of electronic states, the Fermi surface topology, and the coefficients of the low-temperature electron specific heat and the molar Pauli paramagnetic susceptibility have been determined. An increase in T (C) in the BaRh2P2 (1 K) -> BaIr2P2 (2.1 K) transition can assumingly be attributed to the features of their phonon subsystem.

引用

页码：357 / 361

页数：5

共 15 条

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