Stingl, C;
Perry, RS;
Maeno, Y;
Gegenwart, P;
(2011)
Symmetry-Breaking Lattice Distortion in Sr3Ru2O7.
Physical Review Letters
, 107
(2)
, Article 026404. 10.1103/PhysRevLett.107.026404.
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Abstract
The electronic nematic phase of Sr 3 Ru 2 O 7 is investigated by high-resolution in-plane thermal expansion measurements in magnetic fields close to 8 T applied at various angles Θ off the c axis. At Θ < 10 ° we observe a very small ( 10 − 7 ) lattice distortion which breaks the fourfold in-plane symmetry, resulting in nematic domains with interchanged a and b axis. At Θ ≳ 10 ° the domains are almost fully aligned and thermal expansion indicates an area-preserving lattice distortion of order 2 × 10 − 6 which is likely related to orbital ordering. Since the system is located in the immediate vicinity of a metamagnetic quantum critical end point, the results represent the first observation of a structural relaxation driven by quantum criticality.
| Type: | Article |
|---|---|
| Title: | Symmetry-Breaking Lattice Distortion in Sr3Ru2O7 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.107.026404 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.107.026404 |
| 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. |
| 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/10134053 |
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