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dc.contributor.authorWurmehl, Sabinept_BR
dc.contributor.authorFecher, Gerhard H.pt_BR
dc.contributor.authorKandpal, Hem Chandrapt_BR
dc.contributor.authorKsenofontov, Vadimpt_BR
dc.contributor.authorFelser, Claudiapt_BR
dc.contributor.authorLin, Hong-Jipt_BR
dc.contributor.authorMorais, Jonderpt_BR
dc.date.accessioned2014-10-09T02:13:07Zpt_BR
dc.date.issued2005pt_BR
dc.identifier.issn1098-0121pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/104296pt_BR
dc.description.abstractIn this work a simple concept was used for a systematic search for materials with high spin polarization. It is based on two semiempirical models. First, the Slater-Pauling rule was used for estimation of the magnetic moment. This model is well supported by electronic structure calculations. The second model was found particularly for Co2 based Heusler compounds when comparing their magnetic properties. It turned out that these compounds exhibit seemingly a linear dependence of the Curie temperature as function of the magnetic moment. Stimulated by these models, Co2FeSi was revisited. The compound was investigated in detail concerning its geometrical and magnetic structure by means of x-ray diffraction, x-ray absorption, and Mössbauer spectroscopies as well as high and low temperature magnetometry. The measurements revealed that it is, currently, the material with the highest magnetic moment (6uB) and Curie temperature (1100 K) in the classes of Heusler compounds as well as half-metallic ferromagnets. The experimental findings are supported by detailed electronic structure calculations.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofPhysical review. B, Condensed matter and materials physics. Woodbury. Vol. 72, no. 18 (Nov. 2005), 184434 9p.pt_BR
dc.rightsOpen Accessen
dc.subjectFísicapt_BR
dc.titleGeometric, electronic, and magnetic structure of Co/sub 2/FeSi: Curie temperature and magnetic moment measurements and calculationspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000515221pt_BR
dc.type.originEstrangeiropt_BR


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