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物理学报 2000
A CALCULATION OF THE EXCHANGE INTERACTION CONSTANT BETWEEN THE R-SUBLATTICE AND THE 3d-SUBLATTICE IN R2Fe17-xAlx COMPOUNDS
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Abstract:
A calculation of the exchange interaction constant between the R moment and the T moment in rare-earth (R) transition-metal (T) compounds of the type R2Fe17 has been discussed using molecular field theory combining with the results of neutron diffraction or X-ray diffraction. The calculated values for R2Fe17-xAlx (R=Tb,Dy,Ho,Er and Gd,x=7,8) have been given and they are in agreement with the experimental results .