ELECTRONIC-STRUCTURE AND FERMI-SURFACE OF LACU6

被引：13

作者：

HARIMA, H ^{[1
]}

YANASE, A ^{[1
]}

HASEGAWA, A ^{[1
]}

机构：

[1] NIIGATA UNIV,COLL GEN EDUC,NIIGATA 95021,JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1990年 / 59卷 / 11期

关键词：

band theory; CeCu[!sub]6[!/sub; electronic structure; fremi surface; LaCu[!sub]6[!/sub;

D O I：

10.1143/JPSJ.59.4054

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The electronic energy band structure has been calculated for LaCu6, a reference material for the heavy-fermion compound CeCu6, by using a relativistic linearized APW method with the exchange-correlation potential in the local-density approximation. LaCu6 is a compensated metal. It is shown that the Fermi surface consists of many electron and hole sheets in four bands, and holds a lot of the extremal cross sections in various directions. They can explain origins of the major experimental dHvA frequency branches reasonably well, but fails to agree with the experimental frequencies in the low frequency region, perhaps because of limitations of the MT approximation and/or the local density approximations. It is suggested that many dHvA signals may have been missed in the previous measurements. © 1990, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

引用

页码：4054 / 4064

页数：11

共 32 条

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