arXiv 0812.06712008-12-03cond-mat.mtrl-sci

Relationship between the magnetic hyperfine field and the magnetic moment

S. M. Dubiel

发表信息：: J. Alloys Comp., 488, 18 (2009)
DOI：: 10.1016/j.jallcom.2009.08.101

英文摘要：

Based on experimental data it is shown, for some chosen alloys and compounds of iron, that there is no one unique relationship between the 57Fe-site magnetic hyperfine field, Bhf, and the magnetic moment per Fe atom, m. Instead, the Bhf-m plot consists of several branches, each of them being characteristic of a given alloy or compound. Consequently, the effective proportionality constant (hyperfine coupling constant) depends on the alloy system or compound, and for a given alloy system or compound it depends on the composition or even on the lattice site. Consequently, the scaling of Bhf into the underlying m cannot be done a priopri.

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