Critical dielectric susceptibility at a magnetic BEC quantum critical point
dc.contributor.author
Hayashida, Shohei
dc.contributor.author
Huberich, Lysander
dc.contributor.author
Flavián Blasco, Daniel
dc.contributor.author
Yan, Zewu
dc.contributor.author
Povarov, Kirill
dc.contributor.author
Gvasaliya, Severian
dc.contributor.author
Zheludev, Andrey
dc.date.accessioned
2021-08-17T07:02:45Z
dc.date.available
2021-08-17T03:00:47Z
dc.date.available
2021-08-17T07:02:45Z
dc.date.issued
2021-07
dc.identifier.issn
2643-1564
dc.identifier.other
10.1103/PhysRevResearch.3.033053
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/501107
dc.identifier.doi
10.3929/ethz-b-000501107
dc.description.abstract
Magnetic-field-induced phase transitions are investigated in the frustrated gapped quantum paramagnet Rb2Cu2Mo3O12 through dielectric and calorimetric measurements on single-crystal samples. It is clarified that the previously reported dielectric anomaly at 8 K in powder samples is not due to a chiral spin liquid state as has been suggested, but rather to a tiny amount of a ferroelectric impurity phase. Two field-induced quantum phase transitions between paraelectric and paramagnetic and ferroelectric and magnetically ordered states are clearly observed. It is shown that the electric polarization is a secondary order parameter at the lower-field (gap closure) quantum critical point but a primary one at the saturation transition. Having clearly identified the magnetic Bose-Einstein condensation (BEC) nature of the latter, we use the dielectric channel to directly measure the critical divergence of BEC susceptibility. The observed power-law behavior is in very good agreement with theoretical expectations for three-dimensional BEC. Finally, dielectric data reveal magnetic presaturation phases in this compound that may feature exotic order with unconventional broken symmetries.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
American Physical Society
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Critical dielectric susceptibility at a magnetic BEC quantum critical point
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2021-07-15
ethz.journal.title
Physical Review Research
ethz.journal.volume
3
en_US
ethz.journal.issue
3
en_US
ethz.journal.abbreviated
Phys. Rev. Res.
ethz.pages.start
033053
en_US
ethz.size
13 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
College Park, MD
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02505 - Laboratorium für Festkörperphysik / Laboratory for Solid State Physics::03855 - Zheludev, Andrey / Zheludev, Andrey
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02505 - Laboratorium für Festkörperphysik / Laboratory for Solid State Physics::03855 - Zheludev, Andrey / Zheludev, Andrey
en_US
ethz.date.deposited
2021-08-17T03:01:03Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-08-17T07:02:58Z
ethz.rosetta.lastUpdated
2022-03-29T11:14:00Z
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Critical%20dielectric%20susceptibility%20at%20a%20magnetic%20BEC%20quantum%20critical%20point&rft.jtitle=Physical%20Review%20Research&rft.date=2021-07&rft.volume=3&rft.issue=3&rft.spage=033053&rft.issn=2643-1564&rft.au=Hayashida,%20Shohei&Huberich,%20Lysander&Flavi%C3%A1n%20Blasco,%20Daniel&Yan,%20Zewu&Povarov,%20Kirill&rft.genre=article&rft_id=info:doi/10.1103/PhysRevResearch.3.033053&
Dateien zu diesem Eintrag
Publikationstyp
-
Journal Article [130140]