Multipolar Skyrmion Crystals in Non-Kramers Doublet Systems
We study the Kondo lattice model of multipolar magnetic moments interacting with conduction electrons on a triangular lattice. Bond-dependent electron hoppings induce a compasslike anisotropy in the effective Ruderman-Kittel-Kasuya-Yosida interaction between multipolar moments. This unique anisotropy stabilizes multipolar skyrmion crystals at zero magnetic field. In a unit cell, the skyrmion fractionalizes into meron composites subject to the conservation of total topological charge. Diverse multipolar phases in the phase diagram give rise to novel spontaneous Hall response of conduction electrons.
Authors
- Shi‐Zeng Lin (ORCID: https://orcid.org/0000-0002-4368-5244)
- Hao Zhang (ORCID: https://orcid.org/0000-0002-9799-9118)
Institutions
- Los Alamos National Laboratory (US)
- Center for Integrated Nanotechnologies (US)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2024-11-07
- DOI
- https://doi.org/10.1103/physrevlett.133.196702
- Citations
- 6
- Primary Topic
- Magnetic properties of thin films
- Type
- article
- Field-Weighted Citation Impact
- 2.03
Funders
- National Science Foundation
- U.S. Department of Energy
- National Nuclear Security Administration
- Kavli Institute for Theoretical Physics, University of California, Santa Barbara
- Los Alamos National Laboratory