Anharmonic effects in magnetoelastic chains
D.C. Cabra, C.J. Gazza, C.A. Lamas, H.D. Rosales
TL;DR
This paper introduces a novel mechanism where anharmonic spin-phonon coupling induces unexpected magnetization plateaux and magneto-elastic deformations in chains, without magnetic frustration or symmetry breaking.
Contribution
It reveals how anharmonic effects can lead to new magnetization phases and structural deformations in magnetoelastic chains, expanding understanding beyond harmonic models.
Findings
Anharmonic coupling causes magnetization plateaux at unexpected values.
Plateaux are associated with magneto-elastic deformations.
Mechanism operates without magnetic frustration or explicit symmetry breaking.
Abstract
We describe a new mechanism leading to the formation of rational magnetization plateau phases, which is mainly due to the anharmonic spin-phonon coupling. This anharmonicity produces plateaux in the magnetization curve at unexpected values of the magnetization without explicit magnetic frustration in the Hamiltonian and without an explicit breaking of the translational symmetry. These plateau phases are accompanied by magneto-elastic deformations which are not present in the harmonic case.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.