Title :
Anomalous thermomagnetic effect in semiconductor heterojunctions
Author :
Kibis, O.V. ; Makarenko, M.V.
Author_Institution :
Novosibirsk State Tech. Univ., Russia
Abstract :
In a two-dimensional electron gas (2DEG) with asymmetric quantizing potential in the presence of magnetic field parallel to the 2DEG plane due to different interaction between electron system and phonons having mutually opposite directions of wave vectors the anomalous thermomagnetic effect appears. The alternating uniform heating of the crystal lattice results in emergence of alternating electromotive force. The effect is analyzed for interaction between electron system and acoustic phonons (both usual and piezoelectric) in heterojunction GaAs-AlGaAs
Keywords :
III-V semiconductors; aluminium compounds; electron-phonon interactions; gallium arsenide; piezoelectric semiconductors; semiconductor heterojunctions; thermomagnetic effects; two-dimensional electron gas; GaAs-AlGaAs; electron-phonon interaction; magnetic field; piezoelectric semiconductor; semiconductor heterojunction; thermo-EMF; thermomagnetic effect; two-dimensional electron gas; Acoustic waves; Charge carrier processes; Electrons; Energy exchange; Heat transfer; Heating; Heterojunctions; Lattices; Phonons; Temperature;
Conference_Titel :
Electronic Instrument Engineering Proceedings, 2000. APEIE-2000. Volume 1. 2000 5th International Conference on Actual Problems of
Conference_Location :
Novosibirsk
Print_ISBN :
0-7803-5903-8
DOI :
10.1109/APEIE.2000.913075
