Giant effective magnetic moments of chiral phonons from orbit-lattice coupling
Circularly polarized lattice vibrations, also known as chiral phonons, carry angular momentum that leads to magnetic response. Recent experiments revealed responses far exceeding prior theoretical predictions within a classical framework. Here, the authors introduce a microscopic model which explains the large magnetic moments of chiral phonons in magnetic materials, resulting from orbit-lattice couplings that hybridize optical phonons with orbital electronic transitions.
Authors
- Martin Rodriguez-Vega (ORCID: https://orcid.org/0000-0001-8929-6546)
- Dominik M. Juraschek (ORCID: https://orcid.org/0000-0002-7210-8411)
- Gregory A. Fiete (ORCID: https://orcid.org/0000-0001-9477-0804)
- Swati Chaudhary (ORCID: https://orcid.org/0009-0007-2457-2950)
Institutions
- Northeastern University (US)
- Tel Aviv University (IL)
- Massachusetts Institute of Technology (US)
- The University of Texas at Austin (US)
- Universidad del Noreste (MX)
Publication Details
- Journal
- Physical review. B./Physical review. B
- Published
- 2024-09-03
- DOI
- https://doi.org/10.1103/physrevb.110.094401
- Citations
- 39
- Primary Topic
- Atomic and Subatomic Physics Research
- Type
- article
- Field-Weighted Citation Impact
- 12.83
Funders
- National Science Foundation
- Alexander von Humboldt-Stiftung
- Tel Aviv University