Torelli, P. and Sperl, M. and Ciancio, R. and Fujii, J. and Rinaldi, C. and Cantoni, M. and Bertacco, R. and Utz, M. and Bougeard, D. and Soda, M. and Carlino, E. and Rossi, G. and Back, C. H. and Panaccione, G. (2012) Growth of ultrathin epitaxial Fe/MgO spin injector on (0,0,1) (Ga, Mn)As. NANOTECHNOLOGY, 23 (46): 465202. ISSN 0957-4484, 1361-6528
Full text not available from this repository. (Request a copy)Abstract
We have grown an ultrathin epitaxial Fe/MgO bilayer on (Ga, Mn)As by e-beam evaporation in UHV. The system structure has been investigated by high resolution transmission electron microscopy (TEM) experiments which show that the Fe and MgO films, covering completely the (Ga, Mn) As, grow with the epitaxial relationship Fe[100](001) parallel to MgO[110](001) parallel to (Ga, Mn)As[110](001). The magnetic reversal process, studied by the magneto-optical Kerr effect (MOKE) at room temperature, demonstrates that the iron is ferromagnetic and possesses a cubic anisotropy, confirming the epitaxy relationship found with TEM. Resistivity measurements across the barrier display a non-Ohmic behavior characterized by cubic conductance as a function of the applied voltage suggesting tunneling-dominated transport across the barrier.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | THIN-FILMS; MGO; GAAS(001); GAAS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back Physics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Dominique Bougeard |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 04 May 2020 06:55 |
| Last Modified: | 04 May 2020 06:55 |
| URI: | https://pred.uni-regensburg.de/id/eprint/17763 |
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