Muon spin rotation and relaxation in Pr1-xNdxOs4Sb12: paramagnetic states
Muon spin rotation and relaxation in Pr1-xNdxOs4Sb12: paramagnetic states
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Pr1-xNdxOs4Sb12 中的 μ 子自旋旋转和弛豫:顺磁态
DOI:
10.1103/physrevb.89.235111
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
and R. H. Fukuda
中科院分区:
文献类型:
--
作者:
P.-C. Ho;D. E. MacLaughlin;L. Shu;O. O. Bernal;S. Zhao;A. A. Dougraghi;T. Yanagisawa;M. B. Maple;and R. H. Fukuda
Positive-muon () Knight shifts have been measured in the paramagnetic states ofalloys, where, 0.25, 0.45, 0.50, 0.55, 0.75, and 1.00. In Pr-substituted(), but not in, Clogston-Jaccarino plots ofKnight shiftversus magnetic susceptibilityexhibit an anomalous saturation ofat% for large susceptibilities (low temperatures), indicating a reduction of the coupling strength betweenspins andparamagnetism for temperaturesK. We speculate that itinerantquadrupolar excitations, invoked to mediate the superconducting Cooper-pair interaction, might modify the-ion indirect spin-spin interaction.