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Influence of temperature on spin polarization dynamics in dilute nitride semiconductors—Role of nonparamagnetic centers.
- Source :
-
Journal of Applied Physics . 2015, Vol. 118 Issue 15, p155705-1-155705-6. 6p. 2 Diagrams, 1 Chart, 5 Graphs. - Publication Year :
- 2015
-
Abstract
- We report theoretical studies of spin polarization dynamics in dilute nitride semiconductors. We develop a commonly used rate equation model [Lagarde et al., Phys. Status Solidi A 204, 208 (2007) and Kunold et al. Phys. Rev. B 83, 165202 (2011)] to take into account the influence of shallow localizing states on the temperature dependence of spin polarization dynamics and a spin filtering effect. Presented investigations show that the experimentally observed temperature dependence of a spin polarization lifetime in dilute nitrides can be related to the electron capture process by shallow localizing states without paramagnetic properties. This process reduces the efficiency of spin filtering effect by deep paramagnetic centers, especially at low temperatures. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SEMICONDUCTOR research
*SPIN polarization
*NITRIDES
*ELECTRON research
*MAGNETISM
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 118
- Issue :
- 15
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 110495549
- Full Text :
- https://doi.org/10.1063/1.4933385