Magnetism of classical pyrochlore antiferromagnet Na3Mn(CO3)2Cl

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dc.contributor.authorNawa, Ken_AU
dc.contributor.authorOkuyama, Den_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorNojiri, Hen_AU
dc.contributor.authorYoshida, Men_AU
dc.contributor.authorUeta, Den_AU
dc.contributor.authorYoshizawa, Hen_AU
dc.contributor.authorSato, TJen_AU
dc.date.accessioned2021-07-30T01:56:01Zen_AU
dc.date.available2021-07-30T01:56:01Zen_AU
dc.date.issued2020-03-03en_AU
dc.date.statistics2021-07-06en_AU
dc.description.abstractPyrochlore antiferromagnets have attracted interests in terms of unconventional ground states and spin excitations owing to competing interactions. When its magnetism is dominated by classical spins coupled by Heisenberg interactions, a spin liquid state is expected as its ground state because of infinite degeneracy in the ground state (R. Moessner and J. T. Chalker, Phys. Rev. Lett. 80, 2929 (1998); Phys. Rev. B 58, 12049 (1998).). In this research, we report structural and magnetic properties together with low-temperature neutron diffraction patterns on a new pyrochlore antiferromagnet Na3Mn(CO3)2Cl. The structure of Na3Mn(CO3)2Cl is isotypic with that of the Co-analogue Na3Co(CO3)2Cl, which exhibits all-in-all-out magnetic order below 1.5 K (Z. Fu et al., Phys. Rev. B 87, 214406 (2013)). On the other hand, no magnetic Bragg peak indicating a magnetic order was detected down to 0.05 K in Na3Mn(CO3)2Cl. A high degeneracy near the ground state is suggested by a magnetic entropy estimated from heat capacity experiments and enhancement of diffuse scattering from neutron diffraction experiments. © 2021 American Physical Societyen_AU
dc.identifier.articlenumberF46.00009en_AU
dc.identifier.citationNawa, K., Okuyama, D., Avdeev, M., Nojiri, H., Yoshida, M., Ueta, D., Yoshizawa, H., & Sato, T. (2020). Magnetism of classical pyrochlore antiferromagnet Na3Mn(CO3)2Cl. Paper presented at APS March Meeting, March 2–6, Denver, Colorado. In Bulletin of the American Physical Society, 65(1). Retrieved from https://meetings.aps.org/Meeting/MAR20/Session/F46.9en_AU
dc.identifier.conferenceenddate6 March 2006en_AU
dc.identifier.conferencenameAPS March Meetingen_AU
dc.identifier.conferenceplaceDenver, Coloradoen_AU
dc.identifier.conferencestartdate2 March 2006en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleBulletin of the American Physical Societyen_AU
dc.identifier.urihttps://meetings.aps.org/Meeting/MAR20/Session/F46.9en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11157en_AU
dc.identifier.volume65en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectPyrochloreen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectMagnetismen_AU
dc.subjectSpinen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectTemperature range 0065-0273 Ken_AU
dc.titleMagnetism of classical pyrochlore antiferromagnet Na3Mn(CO3)2Clen_AU
dc.typeConference Presentationen_AU
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