Localised magnetic excitations of coupled impurities in a transverse Ising ferromagnet

Details Localised magnetic excitations of coupled impurities in a transverse Ising ferromagnet Localised magnetic excitations of coupled impurities in a transverse Ising ferromagnet

2004-11-04

arxiv.org/abs/cond-mat/0411119v1

Physics

Condensed Matter

Materials Science

8 pages, 7 figures

Scientific paper

10.1016/j.jmmm.2004.12.039

A Green's function formalism is used to calculate the spectrum of excitations of two neighboring impurities implanted in a semi-infinite ferromagnetic. The equations of motion for the Green's functions are determined in the framework of the Ising model in a transverse field and results are given for the effect of the exchange coupling, position and orientation of the impurities on the spectra of localized spin wave modes.

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