AL-27 NMR AND NQR STUDIES OF THE ANTIFERROMAGNETIC SUPERCONDUCTOR UPD2AL3

被引：20

作者：

KOHORI, Y

MATSUDA, K

KOHARA, T

机构：

[1] Department of Material Science, Faculty of Science, Himeji Institute of Technology, Ako-gun, Hyogo

来源：

SOLID STATE COMMUNICATIONS | 1995年 / 95卷 / 02期

关键词：

SUPERCONDUCTORS; HEAVY FERMIONS; NUCLEAR RESONANCES;

D O I：

10.1016/0038-1098(95)00170-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present measurements of the NQR and NMR spectra and the nuclear relaxation rate, 1/T-1, of Al-27 in UPd2Al3 from 0.06 K to 270 K. The broadening of NQR lines and the rapid decrease of 1/T-1 below 14K indicate the appearance of antiferromagnetic order. The temperature dependence of 1/T-1 in the superconducting state shows the existence of line nodes in the superconducting energy gap, and also the existence of residual density of states arising from strong resonant scattering by non-magnetic impurities or imperfections. Together with the decrease of the Knight shift in the superconducting state, it is expected that d-wave superconductivity appears in UPd2Al3.

引用

页码：121 / 126

页数：6

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