Magnetic and Fermi surface properties of UPtGa5

被引：40

作者：

Tokiwa, Y ^{[1
]}

Ikeda, S

Haga, Y

Okubo, T

Iizuka, T

Sugiyama, K

Nakamura, A

Onuki, Y

机构：

[1] Osaka Univ, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan

[2] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[3] Osaka Univ, KYOKUGEN, Toyonaka, Osaka 5600043, Japan

[4] Japan Atom Energy Res Inst, Dept Mat Sci, Tokai, Ibaraki 3191195, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2002年 / 71卷 / 03期

关键词：

dHvA; UPtGa5;

D O I：

10.1143/JPSJ.71.845

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We succeeded in growing a high-quality single crystal of an antiferromagnet UPtGa5 by the self-flux method, and treasured the magnetic susceptibility, electrical resistivity, specific heat and de Haas-van Alphen (dHvA) oscillation. We found an antiferromagnetic transition at 26K from the magnetic susceptibility and electrical resistivity measurements. Six dHvA branches were observed, ranging from 1.14 x 10(7) to 1.13 x 10(8) Oe. Fermi surfaces consist of two nearly cylindrical and two spherical Fermi surfaces. The cyclotron mass is large, ranging from 10 to 24m(0), which is consistent with the electronic specific heat coefficient gamma = 57 mJ/K(2.)mol.

引用

页码：845 / 851

页数：7

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