Please use this identifier to cite or link to this item: https://doi.org/10.1007/s00339-013-7566-x
Title: The effect of a copper interfacial layer on spin injection from ferromagnet to graphene
Authors: Zhang, C.
Wang, Y. 
Wu, B.
Wu, Y. 
Issue Date: May-2013
Source: Zhang, C.,Wang, Y.,Wu, B.,Wu, Y. (2013-05). The effect of a copper interfacial layer on spin injection from ferromagnet to graphene. Applied Physics A: Materials Science and Processing 111 (2) : 339-345. ScholarBank@NUS Repository. https://doi.org/10.1007/s00339-013-7566-x
Abstract: Aiming at enhancing the spin-injection efficiency from ferromagnet to graphene, graphene-based spin valve devices with ferromagnet-Cu-graphene contacts have been fabricated and studied. The ferromagnet-Cu-graphene contact has attracted our attention because of the spin-preserving characteristic of ferromagnet-Cu interface and possible presence of moderate potential barrier at the Cu-graphene interface. The latter may help to alleviate the conductance mismatch issue in spin injection from ferromagnet to graphene. Devices with or without Cu interfacial layers have been fabricated by both evaporation and sputtering on mechanically exfoliated graphene sheets. A potential barrier of 33 meV was derived for the Cu-graphene interface in evaporation-deposited devices from the temperature-dependence of contact resistance. On the other hand, pure ferromagnet-graphene contact exhibits a much lower contact resistance due to its chemisorption interface with graphene. Nonlocal magnetoresistance measurements showed a moderate enhancement of spin injection efficiency with the aid of the Cu interfacial layer. © 2013 Springer-Verlag Berlin Heidelberg.
Source Title: Applied Physics A: Materials Science and Processing
URI: http://scholarbank.nus.edu.sg/handle/10635/57612
ISSN: 09478396
DOI: 10.1007/s00339-013-7566-x
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

3
checked on Dec 13, 2017

WEB OF SCIENCETM
Citations

3
checked on Nov 4, 2017

Page view(s)

28
checked on Dec 9, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.