Magnetism of Invar alloys under pressure examined by inelastic x-ray scattering

被引：64

作者：

Rueff, JP ^{[1
]}

Shukla, A ^{[1
]}

Kaprolat, A ^{[1
]}

Krisch, M ^{[1
]}

Lorenzen, M ^{[1
]}

Sette, F ^{[1
]}

Verbeni, R ^{[1
]}

机构：

[1] European Synchrotron Radiat Facil, F-38043 Grenoble, France

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.63.132409

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic properties of the Invar alloy Fe64Ni36 have been investigated by x-ray emission spectroscopy as a function of pressure up to 20 GPa. With increasing pressure, the amplitude of the Fe local moment, deduced from the Fe K beta line satellite intensity, is reduced at two characteristic step values. This pressure dependence is interpreted in terms of transitions from a high-spin state to a low-spin state at approximate to5 GPa followed by a transition to a nonmagnetic state above 15 GPa. This behavior provides a microscopic picture of the Fe magnetism in agreement with the 2 gamma -state model.

引用

页数：4

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