Magnetic transitions in Fe3Pt Invar alloy under high pressure and temperature studied by inelastic X-ray scattering

被引：6
|
作者：
Rueff, JP [1 ]
Krisch, M
Lorenzen, M
机构：
[1] CNRS, Chim Phys Lab, UMR 7614, F-75231 Paris 05, France
[2] European Synchrotron Radiat Facil, F-38043 Grenoble, France
来源：
HIGH PRESSURE RESEARCH | 2002年 / 22卷 / 01期
关键词：
Invar; high pressure; X-ray emission; inelastic scattering;
D O I：
10.1080/08957950211336
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The magnetic properties of the Invar alloy Fe72Pt28 have been investigated by X-ray emission spectroscopy as a function of temperature up to 900 K and pressure up to 25 GPa, With increasing temperature and pressure, the amplitude of the Fe local moment, deduced from the Fe Kbeta line satellite intensity, is reduced. Both the temperature and pressure dependence are interpreted in terms of transitions from a high-spin state to a low-spin state. This behavior provides a microscopic picture of the Fe magnetism in Invar alloys in agreement with the 2gamma state model.
引用
收藏
页码：53 / 56
页数：4
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