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dc.contributor.authorKimchi, Itamar
dc.contributor.authorSheckelton, John P.
dc.contributor.authorMcQueen, Tyrel M.
dc.contributor.authorLee, Patrick A.
dc.date.accessioned2020-04-22T18:01:23Z
dc.date.available2020-04-22T18:01:23Z
dc.date.issued2018-10
dc.identifier.issn2041-1723
dc.identifier.urihttps://hdl.handle.net/1721.1/124809
dc.description.abstractRecently measurements on various spin–1/2 quantum magnets such as H3LiIr2O6, LiZn2Mo3O8, ZnCu3(OH)6Cl2 and 1T-TaS2—all described by magnetic frustration and quenched disorder but with no other common relation—nevertheless showed apparently universal scaling features at low temperature. In particular the heat capacity C[H, T] in temperature T and magnetic field H exhibits T/H data collapse reminiscent of scaling near a critical point. Here we propose a theory for this scaling collapse based on an emergent random-singlet regime extended to include spin-orbit coupling and antisymmetric Dzyaloshinskii-Moriya (DM) interactions. We derive the scaling C[H, T]/T ~ H−γFq[T/H] with Fq[x] = xq at small x, with q ∈ {0, 1, 2} an integer exponent whose value depends on spatial symmetries. The agreement with experiments indicates that a fraction of spins form random valence bonds and that these are surrounded by a quantum paramagnetic phase. We also discuss distinct scaling for magnetization with a q-dependent subdominant term enforced by Maxwell’s relations. ©2018en_US
dc.description.sponsorshipU.S. Department of Energy, office of Basic Energy Sciences, Division of Materials Sciences and Engineering (grant no. DEFG02-08ER46544)en_US
dc.description.sponsorshipDOE (grant no. DE-FG02-03-ER46076)en_US
dc.publisherSpringer Natureen_US
dc.relation.isversionof10.1038/S41467-018-06800-2en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.sourceNatureen_US
dc.titleScaling and data collapse from local moments in frustrated disordered quantum spin systemsen_US
dc.typeArticleen_US
dc.identifier.citationKimchi, Itamar, John P. Sheckelton, Tyrel M. McQueen, and Patrick A. Lee. “Scaling and Data Collapse from Local Moments in Frustrated Disordered Quantum Spin Systems.” Nature Communications 9, 1 (October 2018): no. 4367 doi 10.1038/s41467-018-06800-2 ©2018 Author(s)en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.relation.journalNature communicationsen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2019-03-29T13:55:41Z
dspace.embargo.termsNen_US
dspace.date.submission2019-04-04T12:27:59Z
mit.journal.volume9en_US
mit.journal.issue1en_US
mit.licensePUBLISHER_CCen_US


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