Wu, J;
Nair, HP;
Bollinger, AT;
He, X;
Robinson, I;
Schreiber, NJ;
Shen, KM;
... Božović, I; + view all
(2020)
Electronic nematicity in Sr2RuO4.
Proceedings of the National Academy of Sciences of the United States of America (PNAS)
, 117
(20)
pp. 10654-10659.
10.1073/pnas.1921713117.
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Abstract
We have measured the angle-resolved transverse resistivity (ARTR), a sensitive indicator of electronic anisotropy, in high-quality thin films of the unconventional superconductor Sr2RuO4 grown on various substrates. The ARTR signal, heralding the electronic nematicity or a large nematic susceptibility, is present and substantial already at room temperature and grows by an order of magnitude upon cooling down to 4 K. In Sr2RuO4 films deposited on tetragonal substrates the highest-conductivity direction does not coincide with any crystallographic axis. In films deposited on orthorhombic substrates it tends to align with the shorter axis; however, the magnitude of the anisotropy stays the same despite the large lattice distortion. These are strong indications of actual or incipient electronic nematicity in Sr2RuO4.
Type: | Article |
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Title: | Electronic nematicity in Sr2RuO4. |
Location: | United States |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1073/pnas.1921713117 |
Publisher version: | http://doi.org/10.1073/pnas.1921713117 |
Language: | English |
Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
Keywords: | Angle-resolved transverse resistivity, electronic nematicity, molecular-beam epitaxy, strontium ruthenate |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
URI: | https://discovery.ucl.ac.uk/id/eprint/10106224 |
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