Work

Spin-Filtered Edge States and Quantum Hall Effect in Graphene

Year: 2006

Type: article

Abstract: Electron edge states in graphene in the quantum Hall effect regime can carry both charge and spin. We show that spin splitting of the zeroth Landau level gives rise to counterpropagating modes with opposite spin polarization. These chiral spin modes lead to a rich variety of spin current states, depending on the spin-flip rate. A method to control the latter locally is proposed. We estimate Zeeman spin splitting enhanced by exchange, and obtain a spin gap of a few hundred Kelvin.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.96.176803

Authors: Dmitry A. Abanin, Patrick A. Lee, Leonid S. Levitov

Institution: Massachusetts Institute of Technology

Language: English

Topic: Quantum and electron transport phenomena

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2030126423

FWCI: 26.21

Cites: 23

Cited by: 507

Related to: 10