Magnon-polaron anomaly in nonlocal spin transport through antiferromagnetic insulators

S. Mojtaba Tabatabaei, Rembert A. Duine, Babak Zare Rameshti

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

We present a nonlocal spin transport theory for the coupled dynamics of magnetization and lattice vibrations in antiferromagnetic insulators. We find that magnon-polaron formation, i.e., coherently hybridized magnon and acoustic phonon modes, not only leads to anomalous features in the nonlocal spin current but also renormalizes the spin-flop transition field of the antiferromagnets. A length scale for the magnon-polaron formation below which the spin current is not affected by the lattice is also extracted from this nonlocal setup.
Original languageEnglish
Article number014432
Pages (from-to)1-5
JournalPhysical Review B
Volume104
Issue number1
DOIs
Publication statusPublished - 1 Jul 2021

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