Spin-spin relaxation in heteropolynuclear clusters containing iron(III) and copper(II) ions
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The magnetic coupling between Fe(III) and Cu(II) and the relaxation behavior of the spin centered at the iron have been studied in di- and trinuclear clusters. The experimental spectra have been analyzed in terms of a simple cross-relaxation model. In the strongly coupled trimer the relaxation rates are determined by a Boltzmann factor and a single field- and temperature-independent scaling parameter1 w 0, while the weakly coupled dimer exhibits obviously a more complex behavior.
KeywordsIron Copper Thin Film Relaxation Rate Experimental Spectrum
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