A new scheme to calculate the exchange tensor and its application to diluted magnetic semiconductors

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dc.creatorEbert, H.
dc.creatorMankovsky, S.
dc.date2008-12-05
dc.date.accessioned2026-07-07T12:09:49Z
dc.date.available2026-07-07T12:09:49Z
dc.descriptionA new scheme to calculate the exchange tensor $\underline{\underline{J}}_{ij}$ describing in a phenomenological way the anisotropic exchange coupling of two moments in a magnetically ordered system is presented. The ab-initio approach is based on spin-polarised relativistic multiple-scattering theory within the framework of spin-density functional theory. The scheme is applied to ferromagnetic CrTe as well as the diluted magnetic semiconductor (DMS) system Ga$_{1-x}$Mn$_{x}$As. In the later case the results show that there is a noticeable anisotropy in the exchange coupling present, although not as pronounced as suggested in recent theoretical investigations.
dc.identifierhttps://arxiv.org/abs/0812.1145
dc.identifierhttp://arxiv.org/abs/0812.1145
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/209754
dc.subjectOther Condensed Matter
dc.subjectMaterials Science
dc.titleA new scheme to calculate the exchange tensor and its application to diluted magnetic semiconductors
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