Thermally activated intersubband scattering and oscillating magnetoresistance in quantum wells
arXiv:1010.6080 · doi:10.1103/PhysRevB.82.165333
Abstract
Experimental studies of magnetoresistance in high-mobility wide quantum wells reveal oscillations which appear with an increase in temperature to 10 K and whose period is close to that of Shubnikov-de Haas oscillations. The observed phenomenon is identified as magnetointersubband oscillations caused by the scattering of electrons between two occupied subbands and the third subband which becomes occupied as a result of thermal activation. These small-period oscillations are less sensitive to thermal suppression than the largeperiod magnetointersubband oscillations caused by the scattering between the first and the second subbands. Theoretical study, based on consideration of electron scattering near the edge of the third subband, gives a reasonable explanation of our experimental findings.
9 pages, 5 figures
References in corpus (15)
- Theory of microwave-induced oscillations in the magnetoconductivity of a 2D electron gas
- Magnetotransport in two-dimensional electron gas at large filling factors
- Mechanisms of the microwave photoconductivity in 2D electron systems with mixed disorder
- Novel Radiation-induced Magnetoresistance Oscillations in a Nondegenerate 2DES on Liquid Helium
- Temperature Dependence of Microwave Photoresistance in 2D Electron Systems
- Resonance oscillations of magnetoresistance in double quantum wells
- Interaction effects on magnetooscillations in a two-dimensional electron gas
- Quantum magneto-oscillations in a two-dimensional Fermi liquid
- Electron Scattering in AlGaN/GaN Structures
- Magnetoresistance oscillations in multilayer systems - triple quantum wells
- Nonlinear transport and oscillating magnetoresistance in double quantum wells
- Effect of electron-electron scattering on magnetointersubband resistance oscillations of two-dimensional electrons in GaAs quantum wells
- Interference of magnetointersubband and phonon-induced resistance oscillations in single GaAs quantum wells with two populated subbands
- Magnetotransport of electrons in quantum Hall systems
- Microwave-induced magnetoresistance of two-dimensional electrons interacting with acoustic phonons
Cited by in corpus (6)
- Nonequilibrium phenomena in high Landau levels
- Magneto-intersubband oscillations in two dimensional systems with energy spectrum split due to spin-orbit interaction
- Magneto-intersubband resistance oscillations in GaAs quantum wells placed in a tilted magnetic field
- Interplay of Landau quantization and interminivalley scatterings in a weakly coupled moiré superlattice
- Resistance oscillations of two-dimensional electrons in crossed electric and tilted magnetic fields
- Magnetophonon oscillations of thermoelectric power and combined resonance in two-subband electron systems