Impurity-vacancy complexes and ferromagnetism in Cr-doped In2O3 (Comunicazione a convegno)

Type
Label
  • Impurity-vacancy complexes and ferromagnetism in Cr-doped In2O3 (Comunicazione a convegno) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Alternative label
  • Paola Alippi* [1], Maura Cesaria [2], Vincenzo Fiorentini [3] (2014)
    Impurity-vacancy complexes and ferromagnetism in Cr-doped In2O3
    in EMRS - Spring Meeting 2014, Varsavia (Polonia), 15-18 settembre 2014
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Paola Alippi* [1], Maura Cesaria [2], Vincenzo Fiorentini [3] (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1. CNR-ISM, Rome, Italy 2. Dipartimento di Matematica e Fisica, U del Salento, Lecce, Italy 3. Dipartimento di Fisica, Universita` di Cagliari; 4CNR-IOM, UOS Cagliari * presenting author (literal)
Titolo
  • Impurity-vacancy complexes and ferromagnetism in Cr-doped In2O3 (literal)
Abstract
  • Based on hybrid density-functional calculations, we propose that ferromagnetism in the prototypical bixbyite sesquioxide In2O3 doped with Cr is due to Cr-oxygen vacancy complexes, while isolated Cr cannot support carrier-mediated magnetic coupling. Our proposal is consistent with experimental facts such as the onset of ferromagnetism in O-lean conditions only, the low or vanishing net moment in unintentionally doped material, and its increase upon intentional doping. (literal)
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