Phase gap in pseudoternary R1-yRyMn2X2-xXx compounds

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dc.contributor.authorWang, JLen_AU
dc.contributor.authorKennedy, SJen_AU
dc.contributor.authorCampbell, SJen_AU
dc.contributor.authorHofmann, Men_AU
dc.contributor.authorDou, SXen_AU
dc.date.accessioned2013-09-12T00:32:33Zen_AU
dc.date.available2013-09-12T00:32:33Zen_AU
dc.date.issued2013-03-04en_AU
dc.date.statistics2013-09-12en_AU
dc.description.abstractOur neutron diffraction investigation of PrMn2Ge2-x Si-x reveals a clear separation into two magnetic phases, canted ferromagnetic (Fmc) and antiferromagnetic (AFmc), between x = 1.0 and 1.2 and a commensurate phase gap in the lattice, due to magnetostrictive distortion. This remarkable magnetoelastic phenomenon is driven by a nonuniform atomic distribution on the X site which in turn produces subtle variations in the local lattice and abrupt changes in the Mn-Mn magnetic exchange interaction. Our results show that coexistence of Fmc and AFmc phases depends on lattice parameter, chemical pressure from the rare-earth and metalloid sites, and local lattice strain distributions. We demonstrate that these magnetostructural correlations act across the entire family of R1-yRy' Mn2X2-xXx' compounds. © 2013, American Physical Societyen_AU
dc.identifier.articlenumber104401en_AU
dc.identifier.citationWang, J. L., Kennedy, S. J., Campbell, S. J., Hofmann, M., & Dou, S. X. (2013). Phase gap in pseudoternary R1-yRyMn2X2-xXx compounds. Physical Review B, 87(10), 104401. doi:10.1103/PhysRevB.87.104401en_AU
dc.identifier.govdoc5176en_AU
dc.identifier.issn1089-0121en_AU
dc.identifier.issue10en_AU
dc.identifier.journaltitlePhysical Review Ben_AU
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevB.87.104401en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4696en_AU
dc.identifier.volume87en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectFerromagnetismen_AU
dc.subjectSiliconen_AU
dc.subjectPraseodymiumen_AU
dc.subjectManganeseen_AU
dc.subjectSemimetalsen_AU
dc.titlePhase gap in pseudoternary R1-yRyMn2X2-xXx compoundsen_AU
dc.typeJournal Articleen_AU
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