Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1624951 | Journal of Alloys and Compounds | 2008 | 4 Pages |
Abstract
Neutron diffraction and DC magnetization measurements on polycrystalline double perovskite Ca2NiWO6 were carried out to determine its low temperature magnetic structure. The compound has a monoclinic structure down to the lowest measured temperature (13 K). Magnetization measurements indicates that the sample has an antiferromagnetic ordering with a Néel temperature of â¼50 K. Our low temperature neutron diffraction measurements showed an antiferromagnetic alignment of Ni moments below 50 K. The magnetic moment of the Ni2+ ions found from neutron diffraction was 2.2(1) μB, at 13 K and was oriented within the b-c plane. An interesting correlation between Néel temperature and band width is found for some double perovskites including Ca2NiWO6.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Keka R. Chakraborty, A. Das, P.S.R. Krishna, S.M. Yusuf, S.J. Patwe, S.N. Achary, A.K. Tyagi,