Strong interplay between magnetism and superconductivity in a heavy-fermion superconductor UPd2Al3

被引：3

作者：

Metoki, N ^{[1
]}

Haga, Y

Koike, Y

Onuki, Y

机构：

[1] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 31911, Japan

[2] Osaka Univ, Grad Sch Sci, Toyonaka, Osaka 560, Japan

来源：

PHYSICA B | 1997年 / 241卷

关键词：

interplay between magnetism and superconductivity; UPd2Al3; heavy-fermion superconductor; gap;

D O I：

10.1016/S0921-4526(97)00735-7

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Strong interplay between antiferromagnetism and superconductivity in a heavy-fermion superconductor UPd2Al3 is studied by neutron scattering. The (0 0 0.5) antiferromagnetic Bragg intensity exhibits 1% reduction below the superconducting transition temperature T-C. We found that the magnetic excitation gap of about 0.4 meV is associated with superconductivity. The spin-wave excitation shows an enhancement and anomalous decrease below T,. These results are indicative of the strong interplay between antiferromagnetism and superconductivity. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：845 / 847

页数：3

共 8 条

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