INSIDE A 2D ELECTRON-SYSTEM - IMAGES OF POTENTIAL AND DISSIPATION

Authors
KNOTT R DIETSCHE W VONKLITZING K EBERL K PLOOG K
Citation
R. Knott et al., INSIDE A 2D ELECTRON-SYSTEM - IMAGES OF POTENTIAL AND DISSIPATION, Solid-state electronics, 37(4-6), 1994, pp. 689-692
Citations number
9
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied","Physics, Condensed Matter
Journal title
Solid-state electronics → ACNP
ISSN journal
00381101
Volume
37
Issue
4-6
Year of publication
1994
Pages
689 - 692
Database
ISI
SICI code
0038-1101(1994)37:4-6<689:IA2E-I>2.0.ZU;2-#
Abstract
Lateral potential distributions in 2D electron systems are imaged unde r magnetotransport conditions with an electrooptic method. In low mobi lity delta-doped samples, the results agree with a classical picture i n the ohmic regime. For high currents, a uniform breakdown is found. I n high-mobility modulation-doped heterostructures, the change in the p otential distribution at breakdown is strongly asymmetric upon current reversal.