Ferrimagnetic order in Ca2FeMoO6

被引：33

作者：

Pinsard-Gaudart, L ^{[1
]}

Surynarayanan, R

Revcolevschi, A

Rodriguez-Carvajal, J

Greneche, JM

Smith, PAI

Thomas, RM

Borges, RP

Coey, JMD

机构：

[1] Univ Paris Sud, Lab Physicochim Solides, F-92405 Orsay, France

[2] CENS, Lab Leon Brillouin, F-91121 Gif Sur Yvette, France

[3] Univ Maine, Lab Phys Etat Condense, F-72085 Le Mans, France

[4] Univ Ireland Trinity Coll, Dept Phys, Dublin 2, Ireland

来源：

JOURNAL OF APPLIED PHYSICS | 2000年 / 87卷 / 09期

关键词：

D O I：

10.1063/1.372949

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The double perovskite Ca2FeMoO6 is a poor metal which orders magnetically at 345 K. The Fe-57 Mossbauer hyperfine field and isomer shift at 4.2 K (48 T and 0.70 mm/s relative to alpha-Fe) indicate an Fe3+ configuration 3d(5 up arrow) which is strongly hybridized with the Mo 4d(down arrow)t(2g) orbitals. The saturation magnetization of 3.6 mu(B)/formula is consistent with neutron diffraction measurements which indicate iron and molybdenum moments of 4.0(1) and -0.2(3)mu(B) per iron or molybdenum, respectively. The sample exhibits approximately 6% cation disorder relative to the ideal NaCl-type order of Fe and Mo in the double perovskite structure. (C) 2000 American Institute of Physics. [S0021- 8979(00)90408-0].

引用

页码：7118 / 7120

页数：3