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Avsar A.,National University of Singapore | Yang T.-Y.,RWTH Aachen | Yang T.-Y.,Juolich Aachen Research Alliance | Bae S.,Sungkyunkwan University | And 14 more authors.
Nano Letters | Year: 2011

We demonstrate injection, transport, and detection of spins in spin valve arrays patterned in both copper based chemical vapor deposition (Cu-CVD) synthesized wafer scale single layer and bilayer graphene. We observe spin relaxation times comparable to those reported for exfoliated graphene samples demonstrating that chemical vapor deposition specific structural differences such as nanoripples do not limit spin transport in the present samples. Our observations make Cu-CVD graphene a promising material of choice for large scale spintronic applications. © 2011 American Chemical Society.

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