Vibhakar, AM;
Khalyavin, DD;
Manuel, P;
Liu, J;
Belik, AA;
Johnson, RD;
(2020)
Spontaneous Rotation of Ferrimagnetism Driven by Antiferromagnetic Spin Canting.
Physical Review Letters
, 124
(12)
, Article 127201. 10.1103/PhysRevLett.124.127201.
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Abstract
Spin-reorientation phase transitions that involve the rotation of a crystal’s magnetization have been well characterized in distorted-perovskite oxides such as orthoferrites. In these systems spin reorientation occurs due to competing rare-earth and transition metal anisotropies coupled via f − d exchange. Here, we demonstrate an alternative paradigm for spin reorientation in distorted perovskites. We show that the R 2 CuMnMn 4 O 12 ( R = Y or Dy) triple A -site columnar-ordered quadruple perovskites have three ordered magnetic phases and up to two spin-reorientation phase transitions. Unlike the spin-reorientation phenomena in other distorted perovskites, these transitions are independent of rare-earth magnetism, but are instead driven by an instability towards antiferromagnetic spin canting likely originating in frustrated Heisenberg exchange interactions, and the competition between Dzyaloshinskii-Moriya and single-ion anisotropies.
| Type: | Article |
|---|---|
| Title: | Spontaneous Rotation of Ferrimagnetism Driven by Antiferromagnetic Spin Canting |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.124.127201 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.124.127201 |
| 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 |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10096656 |
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