SPIN FLUCTUATION AND LOCAL MAGNETISM OF ISOLATED RH IONS IN PARAMAGNETIC DILUTE PDFE ALLOYS

被引：23

作者：

KHATUA, S

MISHRA, SN

DEVARE, SH

DEVARE, HG

机构：

[1] Tata Institute of Fundamental Research, Bombay-400 005, Homi Bhabha Road

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.68.1038

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Large 4d spin magnetic moments with small spin fluctuation rates have been measured for isolated Rh impurities in paramagnetic dilute PdFe alloys using the time-differential perturbed-angular-correlation method. The Curie-Weiss-like local susceptibility reflects enhanced Rh moment stability with the small addition of Fe into the Pd host, indicated by a drastic reduction of the spin fluctuation temperature. We suggest that magnetism and moment stability of Rh in the PdFe system are mainly governed by an interatomic ferromagnetic exchange interaction between the Rh 4d and the Pd d-band electrons.

引用

页码：1038 / 1041

页数：4

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