Mossbauer studies of ferromagnetism in Fe-doped ZnO magnetic semiconductor

被引：77

作者：

Ahn, GY ^{[1
]}

Park, SI ^{[1
]}

Shim, IB ^{[1
]}

Kim, CS ^{[1
]}

机构：

[1] Kookmin Univ, Dept Phys, Seoul 136702, South Korea

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 282卷

关键词：

ZnO; Fe-doping; ferromagnetic; semiconductor; Mossbauer;

D O I：

10.1016/j.jmmm.2004.04.039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

(Zn1-xFexO)-Fe-57 (x = 0.01, 0.02, 0.03) compounds were fabricated using the solid-state reaction method. In order to determine the magnetic behavior and ionic state of the doped transition metal (Fe-57) in ZnO, we carried out Mossbauer measurements at various temperatures ranging from 13 to 295 K. Mossbauer spectra for Zn-0.97 (Fe0.03O)-Fe-57 at 13 K have shown the ferromagnetic phase (sextet) and paramagnetic phase (doublet), but the only paramagnetic phase (doublet) is seen at 295 K. The hysteresis loop below 77 K for Zn-0.97 (Fe0.03O)-Fe-57 indicated the coexistence of ferromagnetic and paramagnetic phases. (C) 2004 Elsevier B.V. All rights reserved.

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页码：166 / 169

页数：4

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