Anomalous magnetic relaxation in thin Pd0.99Fe0.01 films

被引：4

作者：

Uspenskaya, L. S. ^{[1
]}

Khlyustikov, I. N. ^{[2
]}

机构：

[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow Oblast, Russia

[2] Russian Acad Sci, Kapitza Inst Phys Problems, Ul Kosygina 2, Moscow 119334, Russia

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2017年 / 125卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

ALLOYS;

D O I：

10.1134/S1063776117100090

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetic relaxation in Pd0.99Fe0.01 films, which have the thicknesses that are practically important for cryoelectronics (25 and 40 nm), is detected and experimentally studied. The relaxation is shown to be substantial only in thin films. The magnetization relaxation is found to be well described by the sum of two exponential functions with characteristic times that differ by an order of magnitude from each other. The characteristic relaxation time and the ratio of the contributions of two relaxations depend on temperature. The activation energies of the relaxation processes are determined. The activation volume is shown to correspond to a 20-nm ferromagnetic cluster. The results obtained agree with the model of two-component magnetization in thin PdFe films [6].

引用

页码：875 / 878

页数：4

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