Experimental studies have been performed on the velocity-field characteristics of AlGaN/GaN heterostructures. A pulsed voltage input in combination with a four-point measurement was used in a 50 Ω environment to determine the drift velocity of electrons in the two-dimensional electron gas as a function of the applied electric field. These measurements show an apparent saturation velocity near 3.1×10 7cm/s, at a field of 140 kV/cm. A comparison of these studies shows that the experimental velocities are close to previously published simulations based upon Monte Carlo techniques.
|Original language||English (US)|
|Title of host publication||Physica Status Solidi C: Conferences|
|Number of pages||5|
|State||Published - 2005|
ASJC Scopus subject areas
- Condensed Matter Physics