Abstract
We calculate the current-voltage characteristics of a two-dimensional electron system (2DES) subjected to a magnetic field at strong electric fields. The interaction of electrons with piezoelectric acoustic phonons is considered to be a major scattering mechanism governing the current-voltage characteristics. It is shown that at a sufficiently strong electric field corresponding to the Hall drift velocity exceeding the velocity of sound, the dissipative current exhibits an overshoot. The overshoot of the dissipative current can result in a breakdown of the absolute negative conductivity caused by microwave irradiation and, therefore, can substantially affect the formation of the domain structures with the so-called zero-resistance and zero-conductance states and supersonic electron streams.
Original language | English |
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Pages (from-to) | 2718-2721 |
Number of pages | 4 |
Journal | journal of the physical society of japan |
Volume | 72 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2003 Nov |
Externally published | Yes |
Keywords
- Absolute negative conductivity
- Two-dimensional electron system
- Zero-resistance and zero-conductance states
ASJC Scopus subject areas
- Physics and Astronomy(all)