Magnetic Measurements on Single Crystal of Double Perovskite Ca2FeMoO6

被引:18
作者
Moreno, N. O. [1 ]
Barbosa, L. B. [2 ]
Reyes Ardila, D. [2 ]
Andreeta, J. P. [3 ]
机构
[1] Univ Fed Sergipe, Dept Fis, BR-49100000 Sao Cristovao, SE, Brazil
[2] Univ Fed Sergipe, Dept Fis, Itabaiana, SE, Brazil
[3] Inst Fis Sao Carlos, Dept Fis & Ciencia Mat, BR-13560590 Sao Carlos, SP, Brazil
关键词
Ca2FeMoO6; Half-metallic ferrimagnets; Double perovskite; ROOM-TEMPERATURE; MAGNETORESISTANCE; OXIDE;
D O I
10.1007/s10948-012-1723-x
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report the magnetism properties on single crystal of Ca2FeMoO6 double perovskite prepared by a floating zone technique. This high quality material has been studied by X-ray powder diffraction (XRD), and magnetic measurements. The field dependence of the magnetization at 5 K, 100 K, and 300 K suggest a ferrimagnetic behavior with a saturation magnetic moment of approximately 2.1 mu(B), 2.0 mu(B), and 1.4 mu(B) per formula unit, respectively. From dc susceptibility, we observed two magnetic transitions at T-C1 = 380 K (paramagnetic-ferrimagnetic) and T-C1 = 336 K (orthorhombic-monoclinic phase).
引用
收藏
页码:2501 / 2503
页数:3
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