Density Functional Study of Excess Fe in Fe$_{1+x}$Te: Magnetism and Doping

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dc.creatorZhang, Lijun
dc.creatorSingh, D. J.
dc.creatorDu, Mao-Hua
dc.date2008-10-18
dc.date.accessioned2026-07-07T12:34:44Z
dc.date.available2026-07-07T12:34:44Z
dc.descriptionThe electronic and magnetic properties of the excess Fe in iron telluride Fe$_{(1+x)}$Te are investigated by density functional calculations. We find that the excess Fe occurs with valence near Fe$^{+}$, and therefore provides electron doping with approximately one carrier per Fe, and furthermore that the excess Fe is strongly magnetic. Thus it will provide local moments that interact with the plane Fe magnetism, and these are expected to persist in phases where the magnetism of the planes is destroyed for example by pressure or doping. These results are discussed in the context of superconductivity.
dc.identifierhttps://arxiv.org/abs/0810.3274
dc.identifierhttp://arxiv.org/abs/0810.3274
dc.identifierPhys. Rev. B 79, 012506 (2009).
dc.identifierdoi:10.1103/PhysRevB.79.012506
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/217540
dc.subjectSuperconductivity
dc.titleDensity Functional Study of Excess Fe in Fe$_{1+x}$Te: Magnetism and Doping
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