Scanning Tunnelling Microscopy Imaging of Symmetry-breaking Structural Distortion in the Bismuth-based Cuprate Superconductors
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dc.contributor.author |
Zeljkovic, Ilija
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dc.contributor.author |
Main, Elizabeth J. |
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dc.contributor.author |
Williams, Tess Lawanna
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dc.contributor.author |
Boyer, M. C. |
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dc.contributor.author |
Chatterjee, Kamalesh |
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dc.contributor.author |
Wise, W. D. |
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dc.contributor.author |
Yin, Yi |
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dc.contributor.author |
Zech, Martin |
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dc.contributor.author |
Pivonka, Adam Edward
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dc.contributor.author |
Kondo, Takeshi |
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dc.contributor.author |
Takeuchi, T. |
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dc.contributor.author |
Ikuta, Hiroshi |
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dc.contributor.author |
Wen, Jinsheng |
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dc.contributor.author |
Xu, Zhijun |
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dc.contributor.author |
Gu, G. D. |
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dc.contributor.author |
Hoffman, Jenny Eve
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dc.date.accessioned |
2012-05-18T17:21:39Z |
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dash.embargo.terms |
2012-11-07 |
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dc.date.issued |
2012 |
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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. |
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dc.identifier.issn |
1476-1122 |
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dc.identifier.issn |
1476-4660 |
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dc.identifier.uri |
http://nrs.harvard.edu/urn-3:HUL.InstRepos:8784321 |
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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. |
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dc.description.sponsorship |
Physics |
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dc.description.sponsorship |
Other Research Unit |
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dc.language.iso |
en_US |
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dc.publisher |
Nature Publishing Group |
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dc.relation.isversionof |
doi:10.1038/nmat3315 |
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dc.relation.hasversion |
http://arxiv.org/abs/1104.4342 |
en_US |
dash.license |
LAA |
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dc.subject |
superconductivity |
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dc.title |
Scanning Tunnelling Microscopy Imaging of Symmetry-breaking Structural Distortion in the Bismuth-based Cuprate Superconductors |
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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
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dash.waiver |
2012-03-21 |
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dc.date.available |
2012-11-07T08:30:41Z |
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