Abstract
Electric field gradient (efg) tensor axes and signs at various crystallographic sites of Nd 2Fe 14B have been used for the interpretation of Mössbauer effect measurements near the spin-reorientation temperature T s , i.e. at 150 and 100 K. It is observed that not only the variation of quadrupole splitting values DQ m following spin reorientation but also the relative magnitude of DQ m at different iron atom sites could be predicted by efg tensor analysis based on a point-charge model. It is also observed that the magnetic hyperfine field at different iron atom sites exhibits variations near T s similar to those in Tm 2Fe 14B.
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