Driving magnetostructural transitions in layered intermetallic compounds

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dc.contributor.authorWang, JLen_AU
dc.contributor.authorCaron, Len_AU
dc.contributor.authorCampbell, SJen_AU
dc.contributor.authorKennedy, SJen_AU
dc.contributor.authorHofmann, Men_AU
dc.contributor.authorCheng, ZXen_AU
dc.contributor.authorDin, MFMen_AU
dc.contributor.authorStuder, AJen_AU
dc.contributor.authorBrück, Een_AU
dc.contributor.authorDou, SXen_AU
dc.date.accessioned2013-10-08T00:04:18Zen_AU
dc.date.available2013-10-08T00:04:18Zen_AU
dc.date.issued2013-05-23en_AU
dc.date.statistics2013-10-08en_AU
dc.description.abstractWe report the dramatic effect of applied pressure and magnetic field on the layered intermetallic compound Pr0.5Y0.5Mn2Ge2. In the absence of pressure or magnetic field this compound displays interplanar ferromagnetism at room temperature and undergoes an isostructural first order magnetic transition (FOMT) to an antiferromagnetic state below 158 K, followed by another FOMT at 50 K due to the reemergence of ferromagnetism as praseodymium orders (T-C(Pr)). The application of a magnetic field drives these two transitions towards each other, whereas the application of pressure drives them apart. Pressure also produces a giant magnetocaloric effect such that a threefold increase of the entropy change associated with the lower FOMT (at T-C(Pr)) is seen under a pressure of 7.5 kbar. First principles calculations, using density functional theory, show that this remarkable magnetic behavior derives from the strong magnetoelastic coupling of the manganese layers in this compound. © 2013, American Physical Society.en_AU
dc.identifier.articlenumber217211en_AU
dc.identifier.citationWang, J. L., Caron, L., Campbell, S. J., Kennedy, S. J., Hofmann, M., Cheng, Z. X., Md Din, M. F., Studer, A. J., Brück, E., Dou, S. X. (2013). Driving Magnetostructural Transitions in layered intermetallic compounds. Physical Review Letters, 110, 217211. doi:10.1103/PhysRevLett.110.217211en_AU
dc.identifier.govdoc5106en_AU
dc.identifier.issn0031-9007en_AU
dc.identifier.journaltitlePhysical Review Lettersen_AU
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevLett.110.217211en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4776en_AU
dc.identifier.volume110en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectTransition elementsen_AU
dc.subjectMagnetic fieldsen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectFerromagnetismen_AU
dc.subjectPraseodymiumen_AU
dc.subjectEntropyen_AU
dc.titleDriving magnetostructural transitions in layered intermetallic compoundsen_AU
dc.typeJournal Articleen_AU
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