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Mössbauer studies of Fe‐Zn sulphur spinels
Author(s) -
Bae Sung Hwan,
Kim Sam Jin,
Kim Chul Sung
Publication year - 2007
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200777207
Subject(s) - superexchange , spinel , crystallite , lattice constant , chemistry , mössbauer spectroscopy , magnetic moment , crystallography , crystal structure , ion , zinc , analytical chemistry (journal) , doping , inorganic chemistry , materials science , metallurgy , physics , condensed matter physics , optoelectronics , organic chemistry , chromatography , diffraction , optics
The polycrystalline sample of Zn doped Fe 1–x Zn x Cr 2 S 4 (x = 0.1, 0.3) were prepared by solid state reaction. The crystal structure was determined to be the normal cubic spinel of space group Fd 3 m and the lattice constants(x = 0.1, 0.3) were a 0 = 9.9967(3) Å and a 0 = 9.9926(3) Å, respectively. The magnetic moment values of Fe 1–x Zn x Cr 2 S 4 for the x = 0.3 were observed higher than that of the x = 0.1. The Néel temperatures were decreased to 153 K (x = 0.1), 135 K (x = 0.3) with Zn substitution concentration. This result is due to the decrease of A‐B superexchange interaction by the replacement of Zn ions for A site. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)