1.
Phys Rev Lett
; 97(14): 146805, 2006 Oct 06.
Article
in English
| MEDLINE
| ID: mdl-17155283
ABSTRACT
Because of the chiral nature of electrons in a monolayer of graphite (graphene) one can expect weak antilocalization and a positive weak-field magnetoresistance in it. However, trigonal warping (which breaks p-->-p symmetry of the Fermi line in each valley) suppresses antilocalization, while intervalley scattering due to atomically sharp scatterers in a realistic graphene sheet or by edges in a narrow wire tends to restore conventional negative magnetoresistance. We show this by evaluating the dependence of the magnetoresistance of graphene on relaxation rates associated with various possible ways of breaking a "hidden" valley symmetry of the system.
2.
3.
Phys Rev B Condens Matter
; 53(3): 1294-1301, 1996 Jan 15.
Article
in English
| MEDLINE
| ID: mdl-9983587
4.
Phys Rev B Condens Matter
; 49(6): 4344-4347, 1994 Feb 01.
Article
in English
| MEDLINE
| ID: mdl-10011342