Graphene Spin Valve Devices

Author

Hill, Ernie W. ; Geim, Andre K. ; Novoselov, Konstantin ; Schedin, Frederik ; Blake, Peter

Author_Institution

Dept. of Comput. Sci., Manchester Univ.

Volume

42

Issue

10

fYear

2006

Firstpage

2694

Lastpage

2696

Abstract

Graphene-a single atomic layer of graphite-is a recently found two-dimensional (2-D) form of carbon, which exhibits high crystal quality and ballistic electron transport at room temperature. Soft magnetic NiFe electrodes have been used to inject polarized spins into graphene, and a 10% change in resistance has been observed as the electrodes switch from the parallel to the antiparallel state. This coupled with the fact that a field-effect electrode can modulate the conductivity of these graphene films makes them exciting potential candidates for spin electronic devices

Keywords

ballistic transport; enhanced magnetoresistance; soft magnetic materials; spin polarised transport; spin valves; antiparallel state; ballistic electron transport; field-effect electrode; graphene films; graphene spin valve devices; graphite layer; magnetoresistive devices; polarized spins; soft magnetic films; spin electronic devices; Atomic layer deposition; Electrodes; Electrons; Magnetic switching; Polarization; Soft magnetic materials; Spin valves; Switches; Temperature; Two dimensional displays; Magnetoresistive devices; soft magnetic films; thin films;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.878852

Filename

1704408