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dc.contributor.authorPesquera, David
dc.contributor.authorCarpenter, Michael A
dc.contributor.authorSalje, Ekhard KH
dc.date.accessioned2018-12-22T00:30:34Z
dc.date.available2018-12-22T00:30:34Z
dc.date.issued2018-12-07
dc.identifier.issn0031-9007
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/287371
dc.description.abstractPolar and highly mobile domain walls in SrTiO_{3} move under electric and elastic fields. Two vastly different timescales dominate their dynamical behavior. The previously observed fast changes lead to anomalies near 40 K where the elastic moduli soften and the polarity of the walls becomes strong. Keeping the sample under isothermal conditions leads to a new and unexpected phenomenon: The softening vanishes over timescales of days while the piezoelectricity of the sample remains unchanged. The hardening follows glass dynamics below an onset at T^{*}≈40  K. The timescale of the hardening is strongly temperature dependent and can be followed experimentally down to 34 K when the relaxation is not completed within two days. The relaxation time of a stretched exponential decay increases exponentially with the decreasing temperature. This relaxation process follows similar dynamics after zero-field cooling and after applying or removing an electric field. The sluggish behavior is attributed to collective interactions of domain patterns following overdamped glass dynamics rather than ballistic dynamics.
dc.description.sponsorshipThis work was funded by EPSRC grant no. EP/P024904/1. Experimental facilities in Cambridge were established through grants from the Natural Environment Research Council (grant nos. NE/B505738/1, NE/F017081/1) and the Engineering and Physical Sciences Research Council (grant no. EP/I036079/1)
dc.format.mediumPrint
dc.languageeng
dc.publisherAmerican Physical Society (APS)
dc.titleGlasslike Dynamics of Polar Domain Walls in Cryogenic SrTiO_{3}.
dc.typeArticle
prism.issueIdentifier23
prism.publicationDate2018
prism.publicationNamePhys Rev Lett
prism.startingPage235701
prism.volume121
dc.identifier.doi10.17863/CAM.34675
dcterms.dateAccepted2018-10-31
rioxxterms.versionofrecord10.1103/PhysRevLett.121.235701
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2018-12
dc.contributor.orcidSalje, Ekhard [0000-0002-8781-6154]
dc.identifier.eissn1079-7114
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/P024904/1)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/I036079/1)
pubs.funder-project-idNatural Environment Research Council (NE/F017081/1)
cam.issuedOnline2018-12-03


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