Shiogai, J. and Ciorga, M. and Utz, M. and Schuh, D. and Kohda, M. and Bougeard, D. and Nojima, T. and Weiss, D. and Nitta, J. (2018) Spatial variation of dynamic nuclear spin polarization probed by the non-local Hanle effect. APPLIED PHYSICS LETTERS, 112 (13): 132403. ISSN 0003-6951, 1077-3118
Full text not available from this repository. (Request a copy)Abstract
The spatial distribution of dynamic nuclear spin polarization (DNP) has been investigated in a lateral all-semiconductor spin-injection device based on a (Ga, Mn) As/n(+)-GaAs spin-Esaki diode. The DNP induced by the hyperfine interaction has been probed via satellite peaks in non-local Hanle-type spin precession signals, indicating the recovery of electron spin polarization. A quantitative analysis using the self-consistent calculation reproduces the magnetic field position of the satellite peaks as a function of spin injection bias and injector-detector separation. The distance dependence of the Hanle curves reveals that the spin-lattice relaxation rather than the hyperfine interaction is the dominant mechanism of nuclear spin relaxation in the non-local region. Published by AIP Publishing.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GAAS; (GA,MN)AS; INJECTION; DIODE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 11 Mar 2020 12:58 |
| Last Modified: | 11 Mar 2020 12:58 |
| URI: | https://pred.uni-regensburg.de/id/eprint/14874 |
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