3d-electron Heisenberg pyrochlore Mn2Sb2O7

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dc.contributor.authorPeets, DCen_AU
dc.contributor.authorSim, Hen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorPark, JGen_AU
dc.date.accessioned2021-03-10T23:31:30Zen_AU
dc.date.available2021-03-10T23:31:30Zen_AU
dc.date.issued2016-11-21en_AU
dc.date.statistics2021-03-09en_AU
dc.description.abstractIn frustrated magnetic systems, geometric constraints or the competition among interactions introduce extre-mely high degeneracy and prevent the system from readily selecting a low-temperature ground state. The most frustrated known spin arrangement is on the pyrochlore lattice, but nearly all magnetic pyrochlores have unquenched orbital angular momenta, constraining the spin directions through spin-orbit coupling. Pyrochlore Mn2Sb2O7 is an extremely rare Heisenberg pyrochlore system with directionally unconstrained spins and low chemical disorder. We show that it undergoes a spin-glass transition at 5.5 K, which is suppressed by disorder arising from Mn vacancies, indicating this ground state to be a direct consequence of the spins' interactions. The striking similarities to 3d transition-metal pyrochlores with unquenched angular momenta suggests that the low spin-orbit coupling in the 3d block makes Heisenberg pyrochlores far more accessible than previously imagined. ©2016 American Physical Societyen_AU
dc.identifier.articlenumber174431en_AU
dc.identifier.citationPeets, D. C., Sim, H., Avdeev, M., & Park, J.-G. (2016). 3d-electron Heisenberg pyrochlore Mn2Sb2O7. Physical Review B, 94(17), 174431. doi:10.1103/PhysRevB.94.174431en_AU
dc.identifier.issn2469-9969en_AU
dc.identifier.issue17en_AU
dc.identifier.journaltitlePhysical Review Ben_AU
dc.identifier.urihttps://doi.org/10.1103/PhysRevB.94.174431en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10519en_AU
dc.identifier.volume94en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectPyrochloreen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectHeat treatmentsen_AU
dc.subjectSpinen_AU
dc.subjectCrystal latticesen_AU
dc.title3d-electron Heisenberg pyrochlore Mn2Sb2O7en_AU
dc.typeJournal Articleen_AU
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