Magnetic transitions and the magnetocaloric effect in the Pr1−xYxMn2Ge2 system

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dc.contributor.authorWang, JLen_AU
dc.contributor.authorCampbell, SJen_AU
dc.contributor.authorDin, MFMen_AU
dc.date.accessioned2017-04-25T23:53:24Zen_AU
dc.date.available2017-04-25T23:53:24Zen_AU
dc.date.issued2014-03-26en_AU
dc.date.statistics2016-12-07en_AU
dc.description.abstractLayered rare earth compounds in the RMn2X2 series (R = rare-earth; X = Ge, Si) are of interest for potential cooling applications at lower temperatures as they enable the structural and magnetic behavior to be controlled via substitution of R, Mn, and X atoms on the 2a, 4d, and 4e sites respectively. We continue investigations of the Pr1−xYxMn2Ge2 magnetic phase diagram as functions of both composition and Mn–Mn spacing using X-ray and neutron diffraction, magnetization and differential scanning calorimetry measurements. Pr1−xYxMn2Ge2 exhibits an extended region of re-entrant ferromagnetism around x ∼ 0.5 with re-entrant ferromagnetism at inline image for Pr0.5Y0.5Mn2Ge2. The entropy values −ΔSM around the ferromagnetic transition temperatures inline image from the layered antiferromagnetic AFl structure to the canted ferromagnetic structure Fmc (typically inline image) have been derived for Pr1−xYxMn2Ge2 with x = 0.0, 0.2, and 0.5 for ΔB = 0–5 T. The changes in magnetic states due to Y substitution for Pr are discussed in terms of chemical pressure, external pressure, and electronic effects.© 2014, Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.en_AU
dc.identifier.citationWang, J. L., Campbell, S. J., Md Din, M. F., Kennedy, S. J., & Hofmann, M. (2014). Magnetic transitions and the magnetocaloric effect in the Pr1−xYxMn2Ge2 system. physics, states solidi a: applications and materials science, 211(5), 1092-1100. doi:10.1002/pssa.201330640en_AU
dc.identifier.govdoc7671en_AU
dc.identifier.issn1862-6319en_AU
dc.identifier.issue5en_AU
dc.identifier.journaltitlephysics, states solidi a: applications and materials scienceen_AU
dc.identifier.pagination1092-1100en_AU
dc.identifier.urihttp://dx.doi.org/10.1002/pssa.201330640en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/8620en_AU
dc.identifier.volume211en_AU
dc.language.isoenen_AU
dc.publisherWiley Online Libraryen_AU
dc.subjectEarth planeten_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectX-ray tubesen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectCalorimetryen_AU
dc.subjectFerromagnetic materialsen_AU
dc.titleMagnetic transitions and the magnetocaloric effect in the Pr1−xYxMn2Ge2 systemen_AU
dc.typeJournal Articleen_AU
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