This article is cited in 6 papers

Magnetic «doublets» in Mössbauer spectra of superparamagnetic particles

A. M. Afanas'ev, M. A. Chuev

Insitute of Physics and Technology, Russian Academy of Sciences, Moscow

Abstract: It is shown that the Mössbauer magnetic hfs spectra of a superparamagnetic particle are cardinally affected by the rotation of its magnetic moment about the magnetic anisotropy field. This rotation renormalizes the nuclear $g$ factors and qualitatively transforms the spectra. In particular, apart from the well-known magnetic sextet, five, four, three, and even two (magnetic «doublet») lines can arise in the $^{57}$Fe absorption spectra.

PACS: 76.80.+y

Received: 07.03.2003

 English version: Journal of Experimental and Theoretical Physics Letters, 2003, 77:8, 415–419

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