Ferromagnetism and Curie temperature of Vanadium-doped Nitrides

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Electronic structures, exchange interaction mechanism between magnetic ions and Curie temperature of Vanadium - doped Nitrides (AlN, GaN, and InN) are studied within KKR-LSDA-CPA. It is found that the ferromagnetic super-exchange interaction mechanism is dominant at low concentrations of Vanadium, but the anti-ferromagnetic super-exchange interaction appears and reduces the stabilization of ferromagnetism at sufficiently high concentrations (x > 0.10), especially for Vanadium-doped AlN and Vanadium- doped GaN. The estimation of the Curie temperature within the mean field approximation shows the Curie temperature of Vanadium-doped Nitrides exceeding the room temperature with a few constituents of Vanadium.
will be published in J. Elec. Microsc (2005)

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Materials Science, Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/145665

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0504355
 http://arxiv.org/abs/cond-mat/0504355
 J. of Elec. Micro. 54 i61-i64, (2005)

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arXiv