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Article: Kosterlitz-Thouless melting of magnetic order in the triangular quantum Ising material TmMgGaO4

TitleKosterlitz-Thouless melting of magnetic order in the triangular quantum Ising material TmMgGaO4
Authors
Keywordschemical analysis
controlled study
electric field
magnetic field
melting point
Issue Date2020
PublisherNature Research (part of Springer Nature): Fully open access journals. The Journal's web site is located at http://www.nature.com/ncomms/index.html
Citation
Nature Communications, 2020, v. 11 n. 1, p. article no. 1111 How to Cite?
AbstractFrustrated magnets hold the promise of material realizations of exotic phases of quantum matter, but direct comparisons of unbiased model calculations with experimental measurements remain very challenging. Here we design and implement a protocol of employing many-body computation methodologies for accurate model calculations—of both equilibrium and dynamical properties—for a frustrated rare-earth magnet TmMgGaO4 (TMGO), which explains the corresponding experimental findings. Our results confirm TMGO is an ideal realization of triangular-lattice Ising model with an intrinsic transverse field. The magnetic order of TMGO is predicted to melt through two successive Kosterlitz–Thouless (KT) phase transitions, with a floating KT phase in between. The dynamical spectra calculated suggest remnant images of a vanishing magnetic stripe order that represent vortex–antivortex pairs, resembling rotons in a superfluid helium film. TMGO therefore constitutes a rare quantum magnet for realizing KT physics, and we further propose experimental detection of its intriguing properties.
Persistent Identifierhttp://hdl.handle.net/10722/284852
ISSN
2019 Impact Factor: 12.121
2015 SCImago Journal Rankings: 6.539
PubMed Central ID

 

DC FieldValueLanguage
dc.contributor.authorLi, H-
dc.contributor.authorLiao, YD-
dc.contributor.authorChen, BB-
dc.contributor.authorZeng, XT-
dc.contributor.authorSheng, XL-
dc.contributor.authorQi, Y-
dc.contributor.authorMeng, Z-
dc.contributor.authorLi, W-
dc.date.accessioned2020-08-07T09:03:28Z-
dc.date.available2020-08-07T09:03:28Z-
dc.date.issued2020-
dc.identifier.citationNature Communications, 2020, v. 11 n. 1, p. article no. 1111-
dc.identifier.issn2041-1723-
dc.identifier.urihttp://hdl.handle.net/10722/284852-
dc.description.abstractFrustrated magnets hold the promise of material realizations of exotic phases of quantum matter, but direct comparisons of unbiased model calculations with experimental measurements remain very challenging. Here we design and implement a protocol of employing many-body computation methodologies for accurate model calculations—of both equilibrium and dynamical properties—for a frustrated rare-earth magnet TmMgGaO4 (TMGO), which explains the corresponding experimental findings. Our results confirm TMGO is an ideal realization of triangular-lattice Ising model with an intrinsic transverse field. The magnetic order of TMGO is predicted to melt through two successive Kosterlitz–Thouless (KT) phase transitions, with a floating KT phase in between. The dynamical spectra calculated suggest remnant images of a vanishing magnetic stripe order that represent vortex–antivortex pairs, resembling rotons in a superfluid helium film. TMGO therefore constitutes a rare quantum magnet for realizing KT physics, and we further propose experimental detection of its intriguing properties.-
dc.languageeng-
dc.publisherNature Research (part of Springer Nature): Fully open access journals. The Journal's web site is located at http://www.nature.com/ncomms/index.html-
dc.relation.ispartofNature Communications-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectchemical analysis-
dc.subjectcontrolled study-
dc.subjectelectric field-
dc.subjectmagnetic field-
dc.subjectmelting point-
dc.titleKosterlitz-Thouless melting of magnetic order in the triangular quantum Ising material TmMgGaO4-
dc.typeArticle-
dc.identifier.emailMeng, Z: zymeng@hku.hk-
dc.identifier.authorityMeng, Z=rp02524-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1038/s41467-020-14907-8-
dc.identifier.pmid32111829-
dc.identifier.pmcidPMC7048727-
dc.identifier.scopuseid_2-s2.0-85081002102-
dc.identifier.hkuros312491-
dc.identifier.volume11-
dc.identifier.issue1-
dc.identifier.spagearticle no. 1111-
dc.identifier.epagearticle no. 1111-
dc.publisher.placeUnited Kingdom-

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