| AVS 57th International Symposium & Exhibition | |
| Magnetic Interfaces and Nanostructures | Thursday Sessions |
| Session MI-ThP |
| Session: | Magnetic Interfaces Poster Session |
| Presenter: | J.R. Abel, University at Albany |
| Authors: | J.R. Abel, University at Albany A. Matsubayashi, University at Albany J.J. Garramone, University at Albany V.P. LaBella, University at Albany |
| Correspondent: | Click to Email |
The use of the electron spin has gained considerable attention lately as a possible substitute for charge-based electronics [1,2]. This poster will focus on the fabrication of a spin logic device that utilizes graphene as the spin transport channel since graphene has been shown to have a long spin lifetime at room temperature [3]. The device is prepared utilizing exfoliated graphene on SiO2. The injection and readout contacts were fabricated with and without aluminum oxide as a tunnel barrier which was deposited using thermal evaporation of Al in ultra high vacuum (UHV) and then subsequent oxidation in O2. Then Co/Au was deposited under high vacuum and 100-200-nm-wide contacts were pattered using e-beam lithography followed by a standard liftoff technique. Scanning electron microscopy and optical images will be presented of the fabrication process and the device. Non-local spin valve and Hanle measurements are being pursued to characterize the spin injection polarization and the spin relaxation in the graphene channel.
[1] Behin-Aein, B., Datta, D., Salahuddin, S., Datta, S. Nat Nano 5:266-270 (2010)
[2] Dery, H. Dalal, P., Cywinski, L. & Sham, L.J. Nature 447, 573-576 (2007)
[3] Tombros, N., Jozsa, C., Popinciuc, M., Jonkman, H.T., Van Wees, B.J. Nature, 448 (7153), pp. 571-574 (2007)