On the Mechanism of the Temperature Evolution of the Symmetric Magnetic Hyperfine Structure of Mossbauer Spectra of Magnetic Nanoparticles to the Quadrupole Doublet of Lines

被引：2

作者：

Chuev, M. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Phys & Technol, Moscow 117218, Russia

来源：

JETP LETTERS | 2011年 / 94卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

SPECTROSCOPY; FIELD; MODEL;

D O I：

10.1134/S002136401116003X

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The multilayer relaxation model of Mossbauer spectra of an ensemble of single-domain particles has been generalized to the case of the presence of the electric field gradient on nuclei with a chaotic orientation of its principal axes. The generalized model makes it possible to take into account the physical mechanisms of the formation of the hyperfine structure of the spectra in the real situation and to numerically describe the qualitative features of the temperature evolution of the spectra from symmetric magnetic sextet to the quadrupole doublet of lines, which is observed in most experimental spectra of (57)Fe nuclei in magnetic nanoparticles. DOI: 10.1134/S002136401116003X

引用

页码：288 / 293

页数：6

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