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Magnetic and structural properties of rapidly quenched iron–boron metallic glasses
Author(s) -
Hermann H.,
Mattern N.,
Matz W.
Publication year - 1987
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.2221400228
Subject(s) - magnetic moment , extrapolation , amorphous metal , moment (physics) , condensed matter physics , amorphous solid , boron , materials science , scattering , chemistry , physics , crystallography , mathematics , optics , classical mechanics , organic chemistry , mathematical analysis
The structure of rapidly quenched Fe 1– x B x amorphous alloys (0.15 ≦ x < 0.25) is considered to be a stochastic arrangement of two kinds of clusters (α‐Fe and t‐Fe 3 B type short‐range order) and an interface region between them. The corresponding analytical structure model reproduces experimental results on density, small‐angle scattering, and radial distribution functions of atomic distances. Magnetically, each structural component is described by a certain magnetic moment of iron atoms. An expression for the average magnetic moment is derived from the structure model, and the moments of the structural components are determined by means of a least‐square fit to experimental values of the average magnetic moment. The theoretical curve agrees well with the experimental results on the concentration dependence of the average magnetic moment which deviates evidently from a linear behaviour. An extrapolation of structure and average magnetic moment to x = 0 (amorphous pure iron) is not possible at present.