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Effect of local environment on the magnetic properties of the (Cu 1– x Co x ) 2 MnSn alloy
Author(s) -
PugaczowaMichalska M.
Publication year - 2003
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.200301722
Subject(s) - magnetic moment , alloy , condensed matter physics , supercell , lattice constant , materials science , ground state , moment (physics) , chemistry , physics , atomic physics , metallurgy , thunderstorm , classical mechanics , meteorology , diffraction , optics
The electronic structure and the ground state properties of the quaternary Heusler alloy (Cu 1– x Co x ) 2 MnSn have been studied using the TB‐LMTO method. The self‐consistent band structure calculations were performed for experimental lattice parameter. The (Cu 1– x Co x ) 2 MnSn system has been calculated for the supercell structure and for the following value of the parameter x : 0, 0.125, 0.25, 0.375, 0.5, 0.625, 0.75, 0.875, 1.0. The magnetic properties are in agreement with experimental data. In particular the observed increase of total magnetic moment with concentration of Co is reproduced by our calculations. We present the value of local magnetic moment of the Co and Cu atoms for various possible configurations. The dependence of magnetic moment on the local environment has been studied for all concentrations.