Plasmonic Nonreciprocity Driven by Band Hybridization in Moiré Materials.
Phys Rev Lett
; 125(6): 066801, 2020 Aug 07.
Article
in En
| MEDLINE
| ID: mdl-32845684
ABSTRACT
We propose a new current-driven mechanism for achieving significant plasmon dispersion nonreciprocity in systems with narrow, strongly hybridized electron bands. The magnitude of the effect is controlled by the strength of electron-electron interactions α, which leads to its particular prominence in moiré materials, characterized by αâ«1. Moreover, this phenomenon is most evident in the regime where Landau damping is quenched and plasmon lifetime is increased. The synergy of these two effects holds great promise for novel optoelectronic applications of moiré materials.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Phys Rev Lett
Year:
2020
Document type:
Article
Affiliation country:
Estados Unidos