Carrier-induced ferromagnetism in a diluted Hubbard model
classification
❄️ cond-mat.str-el
keywords
carrier-induceddilutedferromagnetismhubbardmodelagreementarrangementsbehaviour
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Carrier-induced ferromagnetism is investigated in a diluted Hubbard model for ordered impurity arrangements. The delicate competition between particle-hole processes contributing to the spin couplings results in a rich variety of behaviour. The ferromagnetic transition temperature obtained within the spin-fluctuation theory is in good agreement with reported values for $\rm Ga_{1-x} Mn_x N$.
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