Dashwood, CD;
Veiga, LS;
Faure, Q;
Vale, JG;
Porter, DG;
Collins, SP;
Manuel, P;
... McMorrow, DF; + view all
(2020)
Spontaneous cycloidal order mediating a spin-reorientation transition in a polar metal.
Physical Review B
, 102
(18)
, Article 180410. 10.1103/PhysRevB.102.180410.
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Abstract
We show how complex modulated order can spontaneously emerge when magnetic interactions compete in a metal with polar lattice distortions. Combining neutron and resonant x-ray scattering with symmetry analysis, we reveal that the spin reorientation in Ca_{3}Ru_{2}O_{7} is mediated by a magnetic cycloid whose eccentricity evolves smoothly but rapidly with temperature. We find the cycloid to be highly sensitive to magnetic fields, which appear to continuously generate higher harmonic modulations. Our results provide a unified picture of the rich magnetic phases of this correlated, multiband polar metal.
| Type: | Article |
|---|---|
| Title: | Spontaneous cycloidal order mediating a spin-reorientation transition in a polar metal |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevB.102.180410 |
| Publisher version: | https://doi.org/10.1103/PhysRevB.102.180410 |
| Language: | English |
| Additional information: | This version is the version of record. 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 > Dept of Physics and Astronomy UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10117069 |
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