Scanning Tunnelling Microscopy Imaging of Symmetry-breaking Structural Distortion in the Bismuth-based Cuprate Superconductors

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Scanning Tunnelling Microscopy Imaging of Symmetry-breaking Structural Distortion in the Bismuth-based Cuprate Superconductors

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dc.contributor.author Zeljkovic, Ilija
dc.contributor.author Main, Elizabeth J.
dc.contributor.author Williams, Tess Lawanna
dc.contributor.author Boyer, M. C.
dc.contributor.author Chatterjee, Kamalesh
dc.contributor.author Wise, W. D.
dc.contributor.author Yin, Yi
dc.contributor.author Zech, Martin
dc.contributor.author Pivonka, Adam Edward
dc.contributor.author Kondo, Takeshi
dc.contributor.author Takeuchi, T.
dc.contributor.author Ikuta, Hiroshi
dc.contributor.author Wen, Jinsheng
dc.contributor.author Xu, Zhijun
dc.contributor.author Gu, G. D.
dc.contributor.author Hoffman, Jenny Eve
dc.date.accessioned 2012-05-18T17:21:39Z
dash.embargo.terms 2012-11-07
dc.date.issued 2012
dc.identifier.citation Zeljkovic, Illija, Elizabeth J. Main, Tess L. Williams, M. C. Boyer, Kamalesh Chatterjee, W. D. Wise, Yi Yin, et al. Forthcoming. Scanning tunnelling microscopy imaging of symmetry-breaking structural distortion in the bismuth-based cuprate superconductors. Nature Materials. en_US
dc.identifier.issn 1476-1122 en_US
dc.identifier.issn 1476-4660 en_US
dc.identifier.uri http://nrs.harvard.edu/urn-3:HUL.InstRepos:8784321
dc.description.abstract A complicating factor in unravelling the theory of high-temperature (high-\(T_c\)) superconductivity is the presence of a ‘pseudogap’ in the density of states, the origin of which has been debated since its discovery. Some believe the pseudogap is a broken symmetry state distinct from superconductivity whereas others believe it arises from short-range correlations without symmetry breaking. A number of broken symmetries have been imaged and identified with the pseudogap state, but it remains crucial to disentangle any electronic symmetry breaking from the pre-existing structural symmetry of the crystal. We use scanning tunnelling microscopy to observe an orthorhombic structural distortion across the cuprate superconducting \(Bi_{2}Sr_{2}Ca_{n−1}Cu_{n}O_{2n+4+x}\) (BSCCO) family tree, which breaks two-dimensional inversion symmetry in the surface BiO layer. Although this inversion-symmetry-breaking structure can impact electronic measurements, we show from its insensitivity to temperature, magnetic field and doping, that it cannot be the long-sought pseudogap state. To detect this picometre-scale variation in lattice structure, we have implemented a new algorithm that will serve as a powerful tool in the search for broken symmetry electronic states in cuprates, as well as in other materials. en_US
dc.description.sponsorship Physics en_US
dc.description.sponsorship Other Research Unit en_US
dc.language.iso en_US en_US
dc.publisher Nature Publishing Group en_US
dc.relation.isversionof doi:10.1038/nmat3315 en_US
dc.relation.hasversion http://arxiv.org/abs/1104.4342 en_US
dash.license LAA
dc.subject superconductivity en_US
dc.title Scanning Tunnelling Microscopy Imaging of Symmetry-breaking Structural Distortion in the Bismuth-based Cuprate Superconductors en_US
dc.type Journal Article en_US
dc.description.version Accepted Manuscript en_US
dc.relation.journal Nature Materials en_US
dash.depositing.author Hoffman, Jenny Eve
dash.waiver 2012-03-21
dc.date.available 2012-11-07T08:30:41Z

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  • FAS Scholarly Articles [7501]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University

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