Tiras, E and Balkan, N and Ardali, S and Gunes, M and Fontaine, C and Arnoult, A (2011) Quantum lifetimes and momentum relaxation of electrons and holes in Ga<sub>0.7</sub>In<sub>0.3</sub>N<sub>0.015</sub>As<sub>0.985</sub>/GaAs quantum wells. Philosophical Magazine, 91 (4). pp. 628-639. DOI https://doi.org/10.1080/14786435.2010.525543
Tiras, E and Balkan, N and Ardali, S and Gunes, M and Fontaine, C and Arnoult, A (2011) Quantum lifetimes and momentum relaxation of electrons and holes in Ga<sub>0.7</sub>In<sub>0.3</sub>N<sub>0.015</sub>As<sub>0.985</sub>/GaAs quantum wells. Philosophical Magazine, 91 (4). pp. 628-639. DOI https://doi.org/10.1080/14786435.2010.525543
Tiras, E and Balkan, N and Ardali, S and Gunes, M and Fontaine, C and Arnoult, A (2011) Quantum lifetimes and momentum relaxation of electrons and holes in Ga<sub>0.7</sub>In<sub>0.3</sub>N<sub>0.015</sub>As<sub>0.985</sub>/GaAs quantum wells. Philosophical Magazine, 91 (4). pp. 628-639. DOI https://doi.org/10.1080/14786435.2010.525543
Abstract
Electronic transport in n- and p-type modulation-doped Ga0.7In0.3N0.015As0.985/GaAs quantum wells are investigated using magneto-transport measurements in the temperature range between T = 1.8 and 32 K and at magnetic fields up to B = 11 T. The momentum relaxation and the quantum lifetimes (τq ) of electrons and holes are obtained directly from the temperature and magnetic field dependencies of the SdH oscillation amplitudes, respectively. A detailed analysis of quantum and transport life times indicates that the momentum relaxation of holes is forward displaced in k-space, while a large angle-scattering mechanism is prominent for the electrons. This discrepancy is believed to be due to scattering of electrons with nitrogen complexes and to the lack of such a mechanism for holes.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GaInNAs; effective mass; quantum lifetime |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Science and Health > Computer Science and Electronic Engineering, School of |
| SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
| Depositing User: | Unnamed user with email elements@essex.ac.uk |
| Date Deposited: | 05 Mar 2012 16:45 |
| Last Modified: | 05 Dec 2024 11:22 |
| URI: | http://repository.essex.ac.uk/id/eprint/2252 |