Fermi surfaces of PrOS4Sb12 based on the LDA+U method

被引：5

作者：

Harima, H

Takegahara, K

机构：

[1] Kobe Univ, Dept Phys, Kobe, Hyogo 6578501, Japan

[2] Hirosaki Univ, Dept Mat Sci & Technol, Hirosaki, Aomori 0368561, Japan

来源：

PHYSICA B-CONDENSED MATTER | 2005年 / 359卷

关键词：

PrOS4Sb12; LDA plus U method; fermi surface;

D O I：

10.1016/j.physb.2005.01.263

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Fermi surfaces of PrOs4Sb12 are investigated based on the LDA + U method with many U values. The 42 electrons in PrOs4Sb12 are experimentally suggested to be localized, in contrast with other heavy-fermion superconductors. This study has revealed that the 4f electrons remain localized with small U = 0.1 Ry, then become itinerant with U = 0.05 Ry, where the topology of the Fermi surfaces are changed and no longer explains the dHvA measurement. (c) 2005 Elsevier B.V. All rights reserved.

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页码：920 / 922

页数：3

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