Work

Anisotropic plasmons in a two-dimensional electron gas with spin-orbit interaction

Year: 2009

Type: article

Abstract: Spin-orbit coupling-induced anisotropies of plasmon dynamics are investigated in two-dimensional semiconductor structures. The interplay of the linear Bychkov-Rashba and Dresselhaus spin-orbit interactions drastically affects the plasmon spectrum: the dynamical structure factor exhibits variations over several decades, prohibiting plasmon propagation in specific directions. While this plasmon filtering makes the presence of spin-orbit coupling in plasmon dynamics observable, it also offers a control tool for plasmonic devices. Remarkably, if the strengths of the two interactions are equal, not only the anisotropy but all the traces of the linear spin-orbit coupling in the collective response disappear.

Source: Physical Review B

DOI: 10.1103/physrevb.79.205305

Authors: S. M. Badalyan, A. Matos-Abiague, G. Vignale, J. Fabian

Institutions: Yerevan State University, University of Regensburg, University of Missouri

Language: English

Topic: Quantum and electron transport phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W1964379834

FWCI: 4.275

Cites: 29

Cited by: 71

Related to: 10