Electron spin dynamics and electron spin resonance in graphene

Autor(en)

Balazs Dora, Ferenc Murányi, Ferenc Simon

Abstrakt

A theory of spin relaxation in graphene including intrinsic, Bychkov-Rashba, and ripple spin-orbit coupling is presented. We find from spin relaxation data by Tombros et al. (Nature, 448 (2007) 571) that intrinsic spin-orbit coupling dominates over other contributions with a coupling constant of 3.7 meV. Although it is 1-3 orders of magnitude larger than those obtained from first principles, we show that comparable values are found for other honeycomb systems, MgB2 and LiC6; the latter is studied herein by electron spin resonance (ESR). We assess the feasibility of bulk electron spin resonance spectroscopy on graphene and identify experimental conditions where such experiments are realizable.

Organisation(en)

Elektronische Materialeigenschaften

Externe Organisation(en)

Max-Planck-Institut für Physik komplexer Systeme, Universität Zürich (UZH)

Journal

Europhysics Letters

Band

92

Anzahl der Seiten

5

ISSN

0295-5075

DOI

https://doi.org/10.1209/0295-5075/92/17002

Publikationsdatum

2010

Peer-reviewed

Ja

ÖFOS 2012

103015 Kondensierte Materie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/8915457e-dfef-45ac-aac6-f44b8042d92f