Low-magnetic field (B < 5 kG) magnetoresistance oscillations (periodic in 1/B) have been observed in a high-mobility two-dimensional electron gas (2DEG). Such novel oscillations appear only in a limited temperature range (approximately, 2 K < T < 10 K). The effect is attributed to magnetophonon resonance of 2DEG with thermally excited leaky interface-acoustic phonons. Results from Fourier analysis of the temperature dependence data are consistent with a model in which two branches of phonon modes contribute to the resonance.
|Original language||English (US)|
|Number of pages||3|
|Journal||Physica E: Low-Dimensional Systems and Nanostructures|
|State||Published - Jan 2002|
|Event||14th International Conference on the - Prague, Czech Republic|
Duration: Jul 30 2001 → Aug 3 2001
Bibliographical noteFunding Information:
This work is supported by the National Science Foundation and by the Department of Energy.
- Electronic transport
- Two-dimensional electrons