Localized magnetic excitations of coupled impurities in a transverse Ising ferromagnet |
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| Affiliation: | 1. Laboratory of Immunobiology, Rega Institute for Medical Research, University of Leuven, Minderbroedersstraat 10, Leuven, Belgium;2. Biophage Pharma, Montreal, Canada |
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| Abstract: | 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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