Abstract

The Mössbauer spectra of Fe–Cr solid solutions in the concentration range of 60–96 at%Cr were obtained at 5 K. These spectra were analyzed to yield hyperfine field distribution curves which are characterized by two distinct peaks. It has been revealed that an isolated Fe atom has a very small hyperfine field indicating a nonmagnetic character. The profiles of the hyperfine field distribution curves as well as the magnetic properties of the alloys, particularly near the critical concentration for ferromagnetism, are discussed on the basis of the local environment model.

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