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Title: Dynamic spin injection into chemical vapor deposited graphene
Authors: Patra, A.K.
Singh, S.
Barin, B.
Lee, Y.
Ahn, J.-H.
Del Barco, E.
Mucciolo, E.R.
Özyilmaz, B. 
Issue Date: 15-Oct-2012
Citation: Patra, A.K., Singh, S., Barin, B., Lee, Y., Ahn, J.-H., Del Barco, E., Mucciolo, E.R., Özyilmaz, B. (2012-10-15). Dynamic spin injection into chemical vapor deposited graphene. Applied Physics Letters 101 (16) : -. ScholarBank@NUS Repository.
Abstract: We demonstrate dynamic spin injection into chemical vapor deposition (CVD) grown graphene by spin pumping from permalloy (Py) layers. Ferromagnetic resonance measurements at room temperature reveal a strong enhancement of the Gilbert damping at the Py/graphene interface, indeed exceeding that observed in Py/platinum interfaces. Similar results are also shown on Co/graphene layers. This enhancement in the Gilbert damping is understood as the consequence of spin pumping at the interface driven by magnetization dynamics. Our observations suggest a strong enhancement of spin-orbit coupling in CVD graphene, in agreement with earlier spin valve measurements. © 2012 American Institute of Physics.
Source Title: Applied Physics Letters
ISSN: 00036951
DOI: 10.1063/1.4761932
Appears in Collections:Staff Publications

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