ELECTRONIC-STRUCTURE AND THE FERMI SURFACES OF ANTIFERROMAGNETIC NDB6

被引：23

作者：

KUBO, Y

ASANO, S

HARIMA, H

YANASE, A

机构：

[1] UNIV TOKYO, INST PHYS, COLL ARTS & SCI, TOKYO 153, JAPAN

[2] UNIV OSAKA PREFECTURE, COLL INTEGRATED ARTS & SCI, SAKAI, OSAKA 593, JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1993年 / 62卷 / 01期

关键词：

NDB6; BAND THEORY; LOCAL-DENSITY APPROXIMATION; KKR METHOD; ENERGY BAND STRUCTURE; FERMI SURFACE; ANTIFERROMAGNETIC STRUCTURE;

D O I：

10.1143/JPSJ.62.205

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The energy-band structures of both Paramagnetic (PR) and antiferromagnetic (AF) phases of NdB6 are calculated by the Korringa-Kohn-Rostoker method within the local-density approximation. In the calculations, 4f-electrons are treated as partially filled core states. The band-structure in the AF phase is satisfactorily explained by a folding procedure of the PR counterpart. The Fermi surfaces in the AF phase consist of two sheets, a multiply-connected hole sheet and a multiply-connected electron one. These Fermi surfaces reasonably reproduce the measured frequency branches of the de Haas-van Alphen effect. From the comparison between the calculated and the observed cyclotron masses, it is pointed out that the mass enhancement due to the f-electrons is negligibly small.

引用

页码：205 / 214

页数：10

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