Abstract
We study magnetoresistivity oscillations induced by microwave radiation or acoustic phonons in high-mobility two-dimensional electron systems subject to dc electric field. In microwave-irradiated samples the response is governed by combined electron transitions, composed of microwave absorption and scattering off impurities. In non-irradiated samples, acoustic phonon resonances are tuned by dc electric field. Here, we show that in both experiments scattering off impurities without microwave or phonon absorption plays an important role and might even dominate the response.
Original language | English (US) |
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Pages (from-to) | 2684-2688 |
Number of pages | 5 |
Journal | International Journal of Modern Physics B |
Volume | 23 |
Issue number | 12-13 |
DOIs | |
State | Published - May 20 2009 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Condensed Matter Physics
Keywords
- Differential resistance
- HIRO
- Magnetooscillations
- MIRO
- Photoconductivity
- PIRO
- Quantum Hall system