Effect of external magnetic field on valence-electron structures of Fe and Ni in Invar, Permalloy and the other Fe-Ni alloys by using Kβ-to-Kα X-ray intensity ratios

被引：14

作者：

Alim, Bunyamin ^{[1
]}

Han, Ibrahim ^{[2
]}

Demir, Lutfu ^{[3
]}

机构：

[1] Bayburt Univ, Dept Elect & Energy, Vocat Sch, TR-69000 Bayburt, Turkey

[2] Ibrahim Cecen Univ Agri, Dept Phys, Fac Arts & Sci, TR-04100 Agri, Turkey

[3] Ataturk Univ, Dept Phys, Fac Sci, TR-25240 Erzurum, Turkey

来源：

APPLIED RADIATION AND ISOTOPES | 2016年 / 112卷

关键词：

Fe-Ni alloy; Valence electron structure; Magnetic field; K beta-to-K alpha X-ray intensity ratio; SUBSHELL FLUORESCENCE YIELDS; CHARGE-TRANSFER; CROSS-SECTIONS; CR; CO; ELEMENTS; TI; NIXFE1-X; MN;

D O I：

10.1016/j.apradiso.2016.03.001

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The effect of external magnetic field on the valence-electron structures of Fe and Ni in various Fe-Ni alloy compositions was investigated by using X-ray fluorescence spectroscopy. Firstly, K beta-to-K alpha X-ray intensity ratios of Fe and Ni in Invar (Fe0.64Ni0.36), Permalloy (Fe0.20Ni0.80) and FexNi1-x (x=0, 0.40, 0.52, 0.55, 0.61, and 1) alloys were measured without any magnetic field and under 0.5 and 1 T external magnetic fields, separately. Later, the valence-electron structures of Fe and Ni in both pure form and alloys were obtained by comparison of measured X-ray intensity ratios with the results of multi-configurations Dirac-Fock (MCDF) calculations. The results obtained for valence-electron structures of Fe and Ni in various Fe-Ni alloys were evaluated in terms of magnetic field effect, delocalization and/or charge transfer phenomena. The results have shown that valence electron structure of Fe and Ni in Fe-Ni alloys are dependent on both external magnetic field and concentration of alloy elements. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：5 / 12

页数：8

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