Towards wafer scale fabrication of graphene based spin valve devices

Details Towards wafer scale fabrication of graphene based spin valve devices Towards wafer scale fabrication of graphene based spin valve devices

2011-04-25

arxiv.org/abs/1104.4715v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

23 pages, 7 figures

Scientific paper

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 (SLG) and bilayer graphene (BLG). We observe spin relaxation times comparable to those reported for exfoliated graphene samples demonstrating that CVD specific structural differences such as nano-ripples and grain boundaries 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.

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