Voelkl, Tobias and Kochan, Denis and Ebnet, Thomas and Ringer, Sebastian and Schiermeier, Daniel and Nagler, Philipp and Korn, Tobias and Schueller, Christian and Fabian, Jaroslav and Weiss, Dieter and Eroms, Jonathan (2019) Absence of a giant spin Hall effect in plasma-hydrogenated graphene. PHYSICAL REVIEW B, 99 (8): 085401. ISSN 2469-9950, 2469-9969
Full text not available from this repository. (Request a copy)Abstract
The weak spin-orbit interaction in graphene was predicted to be increased, e.g., by hydrogenation. This should result in a sizable spin Hall effect (SHE). We employ two different methods to examine the spin Hall effect in weakly hydrogenated graphene. For hydrogenation we expose graphene to a hydrogen plasma and use Raman spectroscopy to characterize this method. We then investigate the SHE of hydrogenated graphene in the H-bar method and by direct measurements of the inverse SHE. Although a large nonlocal resistance can be observed in the H-bar structure, comparison with the results of the other method indicate that this nonlocal resistance has a non-spin-related origin.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | RAMAN-SPECTROSCOPY; GRAPHITE; CHARGE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian Physics > Institute of Experimental and Applied Physics Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 20 Apr 2020 07:00 |
| Last Modified: | 20 Apr 2020 07:00 |
| URI: | https://pred.uni-regensburg.de/id/eprint/27664 |
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