Evidence for local structural symmetry-breaking in Ca$_{1-x}$Eu$_{x}$B$_{6}$

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dc.creatorMartinho, H.
dc.creatorRettori, C.
dc.creatorFisk, Z.
dc.creatorOseroff, S. B.
dc.date2005-03-11
dc.date.accessioned2026-07-07T03:04:07Z
dc.date.available2026-07-07T03:04:07Z
dc.descriptionIn this work we present a systematic Raman Scattering study in the Ca$_{1-x}$% Eu$_{x}$B$_{6}$ series ($0.00\leqslant x\leqslant 1.00$). Our results are the first experimental evidence for the occurrence of a local symmetry break of the crystalline structure in this system. The local symmetry of some Boron octahedra is tetragonal instead of cubic. This result may explain the appearance of ferromagnetism in Eu-hexaborades since magnetic ordering is forbidden in the $O_{h}$ space group of this system.
dc.descriptionSubmitted to Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/cond-mat/0503294
dc.identifierhttp://arxiv.org/abs/cond-mat/0503294
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/26017
dc.subjectStrongly Correlated Electrons
dc.subjectOther Condensed Matter
dc.titleEvidence for local structural symmetry-breaking in Ca$_{1-x}$Eu$_{x}$B$_{6}$
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