Neutron scattering study of the correlation of magnetism and superconductivity in heavy-fermion superconductor UPd2Al3

被引:5
作者
Metoki, N [1 ]
Haga, Y
Koike, Y
Aso, N
Onuki, Y
机构
[1] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 31911, Japan
[2] Tohoku Univ, Grad Sch Sci, Dept Phys, Aoba Ku, Sendai, Miyagi 98077, Japan
[3] Osaka Univ, Grad Sch Sci, Osaka 560, Japan
关键词
heavy-fermion superconductor; spin excitation gap; neutron scattering;
D O I
10.1016/S0304-8853(97)00612-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Neutron scattering experiments have been carried out in order to study the interplay between magnetism and superconductivity in the heavy-fermion superconductor UPd2Al3. We have observed 1% suppression of the (0 0 0.5) magnetic peak intensity below the critical temperature T-c. It is direct evidence for the coupling of the magnetic order with the superconducting order parameters. Spin excitation gap associated with superconductivity is observed for the first time in a heavy-fermion superconductor. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:449 / 450
页数:2
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