Work

Chiral Stoner magnetism in Dirac bands

Year: 2024

Type: article

Abstract: Stoner magnetism in bands with Berry curvature features a coupling between spin chirality density and Berry's orbital magnetism, arising without microscopic spin-orbital interactions. Carriers moving in a spin texture perceive it as a geometric magnetic field coupled to their orbital motion through a spin-dependent gauge field. This emergent spin-orbital interaction, previously predicted to enable chiral magnons at system boundaries, also favors chiral spin textures such as skyrmions -- topologically protected, particle-like objects stabilized in the ground state.

Source: Physical review. B./Physical review. B

DOI: 10.1103/physrevb.110.104420

Authors: Zhiyu Dong, Leonid Levitov

Institution: Massachusetts Institute of Technology

Language: English

Topic: Topological Materials and Phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, California Institute of Technology

Award: G8640644076