Exciton localization on a magnetic domain wall in MoSe2-CrI3 heterostructures
Abstract
The existence of spontaneous magnetization that fingerprints a ground-state ferromagnetic order was recently observed in two-dimensional (2D) van der Waals materials. Despite progress in the fabrication and manipulation of the atom-thick magnets, investigation of nanoscale magnetization properties is still challenging due to the concomitant technical issues. We propose a promising approach for a direct visualization of the domain walls formed in 2D magnetic materials. By interfacing a 2D magnet with a transition metal dichalcogenide (TMD) monolayer, the strong proximity effects enable pinning the TMD excitons on the domain wall. The emergent localization stems from the proximity-induced exchange mixing between spin-dark and spin-bright TMD excitons due to the local in-plane magnetization characteristic of the domain wall in the magnetic monolayer.
- Publication:
-
Physical Review B
- Pub Date:
- November 2023
- DOI:
- 10.1103/PhysRevB.108.L201403
- arXiv:
- arXiv:2308.05531
- Bibcode:
- 2023PhRvB.108t1403M
- Keywords:
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- Condensed Matter - Mesoscale and Nanoscale Physics;
- Condensed Matter - Materials Science
- E-Print:
- 6 pages, 4 figures