De Haas-van Alphen effect and energy band structure in UB2

被引：18

作者：

Yamamoto, E ^{[1
]}

Haga, Y

Honma, T

Inada, Y

Aoki, D

Hedo, M

Yoshida, Y

Yamagami, H

Onuki, Y

机构：

[1] Japan Atom Energy Res Inst, Tokai, Ibaraki 3191195, Japan

[2] Osaka Univ, Grad Sch Sci, Osaka 5600043, Japan

[3] Tohoku Univ, Grad Sch Sci, Sendai, Miyagi 9808576, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1998年 / 67卷 / 09期

关键词：

Fermi surface; dHvA; energy hand structure; UB2;

D O I：

10.1143/JPSJ.67.3171

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We grew a single crystal of UB2 with the hexagonal structure and observed the de Haas-van Alphen (dHvA) oscillation. All of the dHvA branches, which are about seven in number. are detected in the limited angle regions. They are well explained by the 5f-itinerant relativistic band theory with an exchange and correlation potential in a local density approximation. Namely, UB2 is a compensated metal with an equal number of electron and hole. The Fermi surface consists of two closed hut corrugated Fermi surfaces. The cyclotron masses are moderately heavy, ranging from 1.2 to 7.7m(0).

引用

页码：3171 / 3175

页数：5

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