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Magnetic Properties of A 2+ Cr 2 S 4 Compounds with the NiAs Structure
Author(s) -
TRESSLER R. E.,
STUBICAN V. S.
Publication year - 1968
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1968.tb11900.x
Subject(s) - ferrimagnetism , spinel , nichrome , ferromagnetism , structure type , magnetization , crystallography , materials science , chemistry , analytical chemistry (journal) , crystal structure , mineralogy , condensed matter physics , metallurgy , magnetic field , physics , chromatography , quantum mechanics
The cation‐defective NiAs‐type polymorphs of MnCr 2 S 4 , FeCr 2 S 4 , and CoCr 2 S 4 were prepared by high pressure‐high temperature heat treatments. The magnetizations of these specimens and NiCr 2 S 4 were studied from 1.5'K to room temperature. All phases with the NiAs‐type structure were antiferromagneticalIy ordered below NBel temperatures of 70°, 200°, 300°, and 200°K, respectively. These data show a transition from ferrimagnetic to anti‐ferromagnetic ordering in the transformation spinel‐type ↔ NiAs‐type structure in the A 2+ Cr 2 S 4 compounds.