Ultrasmall-moment static magnetism in CeRu2Si2.

Ultrasmall-moment static magnetism in CeRu2Si2.
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CeRu2Si2 中的超小力矩静磁。

DOI:
10.1103/physrevb.50.619
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发表时间:
1994
期刊:
Physical review. B, Condensed matter
影响因子:
--
通讯作者:
Lejay
Lejay
中科院分区:
--
文献类型:
--
作者:
Amato;Feyerherm;Gygax;Schenck;Flouquet;Lejay

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在重费米子化合物ceru2si2的单晶中进行了介子自旋实验。通过对介子奈特位移的分析,确定了介子停止的位置。μ子偏振的零场弛豫率在~ 2 K以下有一个小而显著的增加,在纵场实验中可以抑制。这一结果为存在10−3 μ B量级的超微小矩的静态电磁提供了明确的证据。
Muon-spin-rotation experiments have been carried out in single crystals of the heavy-fermion compound CeRu 2 Si 2. The muon-stopping site has been determined from an analysis of the muon Knight shift. The zero-field relaxation rate of the muon polarization exhibits a small but significant increase below∼ 2 K which can be suppressed in longitudinal-field experiments. This result provides definite evidence for the occurrence of static electronic magnetism involving ultrasmall moments of the order of 10− 3 μ B.