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Multiperiodic Spin Precession of the Optically Induced Spin Polarization in $${\hbox {Al}}_{x}{\hbox {Ga}}_{1-x}{\hbox {As/AlAs}}$$ Single Quantum Well
- Source :
- Iranian Journal of Science and Technology, Transactions A: Science. 44:549-555
- Publication Year :
- 2020
- Publisher :
- Springer Science and Business Media LLC, 2020.
-
Abstract
- We employed the reflective probing of linearly polarized light to explore the dependence of electron spin dynamics, in a high mobility dense two-dimensional electron gas, on the external magnetic field, excitation power and sample temperature using the time-resolved Kerr rotation. Owing to the complex layered structure, the dynamics of spin polarization in the studied sample enclosed information about the spin signal corresponding to the different populations of electrons. Fit to the data revealed multiperiodic spin precession, with distinct g-factors that modulate the decay of the TRKR envelope. Additionally, the spin precession in our structure was seen to be thermally robust, persisting up to 250 K. The dynamics of optically induced spins, from different electron populations, was monitored as a function of different experimental parameters.
- Subjects :
- Physics
Condensed matter physics
Spin polarization
Spins
General Mathematics
General Physics and Astronomy
02 engineering and technology
General Chemistry
Electron
021001 nanoscience & nanotechnology
01 natural sciences
0103 physical sciences
Precession
General Earth and Planetary Sciences
010306 general physics
0210 nano-technology
General Agricultural and Biological Sciences
Spin (physics)
Quantum well
Excitation
Envelope (waves)
Subjects
Details
- ISSN :
- 23641819 and 10286276
- Volume :
- 44
- Database :
- OpenAIRE
- Journal :
- Iranian Journal of Science and Technology, Transactions A: Science
- Accession number :
- edsair.doi...........7bceb93fc2bc2a2ffcc7ec580d10a6fd