Study and simulation of magnetic susceptibility of Si and Si0.95Ge0.05 whiskers

被引:7
|
作者
Tsmots, V. M. [1 ]
Litovchenko, P. G. [2 ]
Pavlovska, N. T. [1 ,2 ]
Pavlovskyy, Yu. V. [1 ,2 ]
Ostrovskyy, I. P. [3 ]
机构
[1] Ivan Franko Drohobych State Pedag Univ, UA-82100 Drogobych, Ukraine
[2] Natl Acad Sci Ukraine, Inst Nucl Res, UA-03028 Kiev, Ukraine
[3] Lvivska Politekhnika Natl Univ, UA-82000 Lvov, Ukraine
关键词
SILICON;
D O I
10.1134/S1063782610050131
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The magnetic susceptibilities of Si and Si0.95Ge0.05 alloy whiskers of different diameters have been studied. Its significant difference from the magnetic susceptibility of a bulk material has been found. The presence of paramagnetic centers, some of which form magnetic nanoclusters in samples, is assumed. To explain the experimental results obtained, a model within Langevin superparamagnetism has been suggested. The distribution function of clusters over their magnetic moments has been constructed. The most probable sizes and magnetic moments of clusters are determined.
引用
收藏
页码:623 / 627
页数:5
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