Absolute spin magnetic moment of FeF2 from high energy photon diffraction

被引：22

作者：

Strempfer, J ^{[1
]}

Rütt, U

Jauch, W

机构：

[1] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA

[2] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[3] Hahn Meitner Inst Kernforsch Berlin GmbH, D-14109 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.86.3152

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetic spin structure factor of FeF2 has been directly determined from high energy magnetic x-ray diffraction at 115 keV photon energy. A pure spin moment of mu = 401(5) mu (B) was observed, which agrees very well with the spin moment of the free Fe2+ ion and differs significantly from values of the total magnetic moment obtained by other methods. The magnetic phase transition of FeF2 has been carefully investigated and values for the critical exponent of the order parameter obtained by other techniques have been confirmed.

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收藏

页码：3152 / 3155

页数：4

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