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dc.contributor.authorOuardi, Sihampt_BR
dc.contributor.authorFecher, Gerhard H.pt_BR
dc.contributor.authorBalke, Benjaminpt_BR
dc.contributor.authorBeleanu, Andreeapt_BR
dc.contributor.authorKozina, Xeniyapt_BR
dc.contributor.authorStryganyuk, Gregorypt_BR
dc.contributor.authorFelser, Claudiapt_BR
dc.contributor.authorKlöß, Wernerpt_BR
dc.contributor.authorSchrader, Hartmutpt_BR
dc.contributor.authorBernardi, Fabianopt_BR
dc.contributor.authorMorais, Jonderpt_BR
dc.contributor.authorIkenaga, Eijipt_BR
dc.contributor.authorYamashita, Yoshiyukipt_BR
dc.contributor.authorUeda, Shigenoript_BR
dc.contributor.authorKobayashi, Keisukept_BR
dc.date.accessioned2014-10-14T02:13:07Zpt_BR
dc.date.issued2011pt_BR
dc.identifier.issn1098-0121pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/104527pt_BR
dc.description.abstractThis work reports on the electronic and crystalline structure and the mechanical, magnetic, and transport properties of the polycrystalline Heusler compound Co2MnGe. The crystalline structure was examined in detail by extended x-ray absorption fine-structure spectroscopy and anomalous x-ray diffraction. The compound exhibits a well-ordered L21 structure as is typical for Heusler compounds with 2:1:1 stoichiometry. The low-temperature magnetic moment agrees well with the Slater-Pauling rule and indicates a half-metallic ferromagnetic state of the compound, as is predicted by ab initio calculations. Transport measurements and hard x-ray photoelectron spectroscopy were performed to explain the electronic structure of the compound. The obtained valence band spectra exhibit small energy shifts that are the result of the photoexcitation process, whereas electron-electron correlation in the ground state is negligible. The vibration and mechanical properties of the compound were calculated. The observed hardness values are consistent to a covalent-like bonding of Co2MnGe.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofPhysical review. B, Condensed matter and materials physics. Woodbury. Vol. 84, no. 15 (Oct. 2011), 155122, 12 p.pt_BR
dc.rightsOpen Accessen
dc.subjectFísica da matéria condensadapt_BR
dc.subjectMateriais ferromagnéticospt_BR
dc.subjectMomentos magnéticospt_BR
dc.subjectEstrutura cristalinapt_BR
dc.subjectEstrutura eletronicapt_BR
dc.subjectEXAFSpt_BR
dc.subjectLigas de cobaltopt_BR
dc.subjectLigas de manganespt_BR
dc.subjectCalculos ab initiopt_BR
dc.subjectEstequiometriapt_BR
dc.subjectVibracoespt_BR
dc.titleElectronic and crystallographic structure, hard x-ray photoemission, and mechanical and transport properties of the half-metallic Heusler compound Co2MnGept_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000794555pt_BR
dc.type.originEstrangeiropt_BR


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