MOSSBAUER STUDY OF NI-X(CU0.5FE0.5)(1-X)CR2S4

Citation
Hn. Ok et al., MOSSBAUER STUDY OF NI-X(CU0.5FE0.5)(1-X)CR2S4, Solid state communications, 96(11), 1995, pp. 907-909
Citations number
13
Categorie Soggetti
Physics, Condensed Matter
Journal title
ISSN journal
00381098
Volume
96
Issue
11
Year of publication
1995
Pages
907 - 909
Database
ISI
SICI code
0038-1098(1995)96:11<907:MSON>2.0.ZU;2-K
Abstract
Ni-x(Cu0.5Fe0.5)(1-x)Cr2S4 has been studied by Mossbauer spectroscopy and X-ray diffraction. The crystal is found to have a cubic spinel str ucture and the lattice constant decreases with increasing Ni concentra tion. The iron ions are in ferric states and occupy the tetrahedral si tes. When the nickel concentration at the tetrahedral sites increases from 10 to 30%, magnetic hyperfie held and Neel temperature are found to decrease by 2 and 9%, respectively. As the interatomic distance dec reases by 0.4%, Debye temperature increases rapidly by 37%.