2011
DOI: 10.1103/physrevb.83.134405
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Enhanced ferromagnetism from electron-electron interactions in double-exchange-type models

Abstract: The magnetic properties of a variety of materials with promise for technological applications have been described by models in which fermions are coupled to local moment spins. Monte Carlo studies of such models usually ignore electron-electron interactions, even though the energy scale corresponding to these interactions may be comparable to or larger than other relevant energy scales. In this work we add on-site interactions between fermions to the double exchange model which we study with a Monte Carlo sche… Show more

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