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Article: Antiferromagnetism in the kagome-lattice compound α-Cu3Mg(OH)(6)Br-2

TitleAntiferromagnetism in the kagome-lattice compound α-Cu3Mg(OH)(6)Br-2
Authors
KeywordsAntiferromagnetism
Crystal structure
Magnetic moments
Magnetic susceptibility
Neutron diffraction
Issue Date2019
PublisherAmerican Physical Society. The Journal's web site is located at http://journals.aps.org/prb/
Citation
Physical Review B: covering condensed matter and materials physics, 2019, v. 100 n. 15, p. 155129:1-155129:6 How to Cite?
AbstractThe antiferromagnetism in α-Cu3Mg(OH)6Br2 was studied by magnetic-susceptibility, specific-heat, and neutron-diffraction measurements. The crystal structure consists of Cu2+ kagome layers with Mg2+ ions occupying the centers of the hexagons, separated by Br1-ions. The magnetic system orders antiferromagnetically at 5.4 K with the magnetic moments aligned ferromagnetically within the kagome planes. The ordered moment is 0.94μB, suggesting little quantum and geometrical fluctuations. By comparing the magnetic and specific-heat properties with those of the haydeeite, we suggest that α-Cu3Mg(OH)6Br2 may be described by the two-dimensional spin-1/2 Heisenberg kagome model and is in the region of the ferromagnetic-order side of the phase diagram. © 2019 American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/279476
ISSN
2017 Impact Factor: 3.813

 

DC FieldValueLanguage
dc.contributor.authorWei, Y-
dc.contributor.authorFeng, Z-
dc.contributor.authordela Cruz, CD-
dc.contributor.authorYi, W-
dc.contributor.authorMeng, ZY-
dc.contributor.authorMei, JW-
dc.contributor.authorShi, Y-
dc.contributor.authorLi, S-
dc.date.accessioned2019-11-01T07:18:06Z-
dc.date.available2019-11-01T07:18:06Z-
dc.date.issued2019-
dc.identifier.citationPhysical Review B: covering condensed matter and materials physics, 2019, v. 100 n. 15, p. 155129:1-155129:6-
dc.identifier.issn2469-9950-
dc.identifier.urihttp://hdl.handle.net/10722/279476-
dc.description.abstractThe antiferromagnetism in α-Cu3Mg(OH)6Br2 was studied by magnetic-susceptibility, specific-heat, and neutron-diffraction measurements. The crystal structure consists of Cu2+ kagome layers with Mg2+ ions occupying the centers of the hexagons, separated by Br1-ions. The magnetic system orders antiferromagnetically at 5.4 K with the magnetic moments aligned ferromagnetically within the kagome planes. The ordered moment is 0.94μB, suggesting little quantum and geometrical fluctuations. By comparing the magnetic and specific-heat properties with those of the haydeeite, we suggest that α-Cu3Mg(OH)6Br2 may be described by the two-dimensional spin-1/2 Heisenberg kagome model and is in the region of the ferromagnetic-order side of the phase diagram. © 2019 American Physical Society.-
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at http://journals.aps.org/prb/-
dc.relation.ispartofPhysical Review B: covering condensed matter and materials physics-
dc.rightsPhysical Review B: covering condensed matter and materials physics. Copyright © American Physical Society.-
dc.rightsCopyright [2019] by The American Physical Society. This article is available online at [http://dx.doi.org/10.1103/PhysRevB.100.155129].-
dc.subjectAntiferromagnetism-
dc.subjectCrystal structure-
dc.subjectMagnetic moments-
dc.subjectMagnetic susceptibility-
dc.subjectNeutron diffraction-
dc.titleAntiferromagnetism in the kagome-lattice compound α-Cu3Mg(OH)(6)Br-2-
dc.typeArticle-
dc.identifier.emailMeng, ZY: zymeng@hku.hk-
dc.identifier.authorityMeng, ZY=rp02524-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevB.100.155129-
dc.identifier.scopuseid_2-s2.0-85074401019-
dc.identifier.hkuros308510-
dc.identifier.volume100-
dc.identifier.issue15-
dc.identifier.spage155129:1-
dc.identifier.epage155129:6-
dc.publisher.placeUnited States-

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