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Mössbauer studies of the Cr doped ordered perovskite
Author(s) -
Ahn Geun Young,
Kim Je Hoon,
Park SeungIel,
Kim Chul Sung
Publication year - 2004
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.200304557
Subject(s) - mössbauer spectroscopy , hyperfine structure , tetragonal crystal system , analytical chemistry (journal) , coercivity , materials science , doping , perovskite (structure) , anisotropy , saturation (graph theory) , magnetization , crystallography , nuclear magnetic resonance , crystal structure , chemistry , condensed matter physics , magnetic field , atomic physics , physics , mathematics , optoelectronics , chromatography , quantum mechanics , combinatorics
The Cr doped ordered perovskite powder of Sr 2 Fe 0.93 Cr 0.07 MoO 6 has been prepared by a solid‐state reaction method. The chemical composition and the crystalline structure of the sample were confirmed with the Rutherford backscattering spectrometer spectrum and X‐ray diffraction pattern analysis. The crystalline structure was determined to be tetragonal with lattice parameters a 0 = 5.572 Å and c 0 = 7.900 Å, respectively. The magnetic properties of the Sr 2 Fe 0.93 Cr 0.07 MoO 6 have been studied by the vibrating sample magnetometer and the Mössbauer spectroscopy. The saturation magnetization and the coercive force were 26.5 emu/g and 101.2 Oe at room temperature. Mössbauer spectra measurements of the Sr 2 Fe 0.93 Cr 0.07 MoO 6 have been taken at various temperatures ranging from 15 to 450 K. Analysis of Mössbauer spectra has considered with next nearest‐neighbour interactions and the anisotropic hyperfine field fluctuation. The anisotropic field fluctuation of + H ( P + = 0.85) is greater than that of − H ( P − = 0.15). (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)