Potassium doping effects on the structure and magnetic properties of Sr2FeMoO6

被引：16

作者：

Hu, Y. C. ^{[1
,2
]}

Han, H. X. ^{[3
]}

Hu, H. J. ^{[4
]}

Zhang, K. L. ^{[1
]}

Wang, H. Y. ^{[1
]}

Jiang, Y. J. ^{[1
]}

Ma, H. ^{[1
]}

Lu, Q. F. ^{[1
]}

机构：

[1] Henan Normal Univ, Coll Phys & Informat Engn, Xinxiang 453007, Henan, Peoples R China

[2] Nanjing Univ, Dept Phys, Key Lab Solid State Microstruct, Nanjing Natl Lab Microstruct, Nanjing 210093, Jiangsu, Peoples R China

[3] Rd & Bridge Construct Co Ltd Henan Zhongzhou, Zhoukou 466000, Henan, Peoples R China

[4] Xinyang Normal Univ, Sch Phys & Elect Engn, Xinyang 464000, Henan, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2012年 / 526卷

关键词：

X-ray diffraction; Crystal structure; Vacancy formation; Magnetic measurements; Magnetoresistance; INSULATOR; CHARGE; MAGNETORESISTANCE; PHYSICS; FE;

D O I：

10.1016/j.jallcom.2012.02.059

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The crystal structure 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 single phase and have the I4/m symmetry. The anti-site defect (AS) in double perovskite oxides of Sr2-xKxFeMoO6 may be adjusted by alkali metal element of K doping. The unit cell magnetization at 280 K is 1.12 mu(B) for x = 0 and 1.26 mu(B) for x = 0.04, respectively. The cation-ordering and the Fe-O(1)-Mo bond-angle play the competition roles on the magnetism in the doping system. (C) 2012 Elsevier B. V. All rights reserved.

引用

页码：1 / 5

页数：5

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