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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Singh, S. Patra, A.K. Barin, B. del Barco, E. Ozyilmaz, B. |
| Copyright Year | 1965 |
| Abstract | This article reports a comparative study of the spin pumping induced by graphite and graphene layers adjacent to an extended ferromagnetic Permalloy film. The corresponding enhancement of the Gilbert damping in the ferromagnet is determined by analyzing the frequency dependence of the ferromagnetic resonance linewidth in experiments done with a broad band microwave spectrometer. The results show that a single graphene layer is more efficient than a thick graphite film in absorbing the angular momentum pumped away from the Permalloy during the resonant precession of its magnetization. We associate this effect to an enhancement of the spin-orbit coupling in the graphene layer due to Copper adatoms residual from the chemical vapor deposition process used to synthesize the graphene used in the experiments. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 3147 |
| Ending Page | 3150 |
| Page Count | 4 |
| File Size | 438419 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 49 |
| Issue Number | 7 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-07-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Graphene Magnetic resonance Damping Metals Frequency modulation Couplings spin polarized transport Magnetoelectronics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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