Hole doping effects on structure and magnetic properties of Sr2FeMoO6

被引：4
|
作者：
Hu Yan-Chun [1 ,2 ]
Wang Yan-Wen [3 ]
Zhang Ke-Lei [1 ]
Wang Hai-Ying [1 ]
Ma Heng [1 ]
Lu Qing-Feng [1 ]
机构：
[1] Henan Normal Univ, Coll Phys & Informat Engn, Xinxiang 453007, Peoples R China
[2] Henan Prov Key Lab Photovolta Mat, Xinxiang 453007, Peoples R China
[3] Xinxiang Med Univ, Dept Life Sci & Technol, Xinxiang 453003, Peoples R China
来源：
ACTA PHYSICA SINICA | 2012年 / 61卷 / 22期
基金：
中国国家自然科学基金;
关键词：
X-ray powder diffraction; crystal structure; hole doping; magnetic material; INSULATOR; PHYSICS;
D O I：
10.7498/aps.61.226101
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Samples of Sr2-xFeMoO6 (x = 0, 0.01, 0.02, 0.03, 0.04) are prepared by standard solid-state reaction. The crystal structures and magnetic properties for the ordered double perovskite oxides Sr2-xKxFeMoO6 (0 <= x <= 0.04) are investigated. X-ray powder diffraction studies reveal that all the samples are of single phase and each of them has a I4/m symmetry. The anti-site defects in double perovskite oxides of Sr2FeMoO6 may be adjusted by alkali metal element of K doping. The unit cell magnetizations at 280 K are 1.12(mu B) for x = 0.00 and 1.26(mu B) for x = 0.04. The cation-ordering and the variation of structure parameters play improtant roles in determining the magnetism in the doping system.
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页数：6
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