Current scaling and electron heating between integer quantum Hall plateaus in GaAs/AlxGa1-xAs heterostructures

Autor: F. J. Ahlers, Hansjörg Scherer, L. Bliek, Ludwig Schweitzer, W Schlapp, R Losch
Rok vydání: 1995
Předmět:
Zdroj: Semiconductor Science and Technology. 10:959-964
ISSN: 1361-6641
0268-1242
DOI: 10.1088/0268-1242/10/7/010
Popis: The current- and temperature-dependent broadening of the resistivity peaks in the region between adjacent quantum Hall plateaus is measured in two different GaAs/AlxGa1-xAs samples. Power law behaviour is found for temperature and current scaling. Combining both results, a relation for the current-density-dependent effective electron temperature can be extracted. We find Te approximately jalpha with a current heating exponent alpha approximately=0.5.
Databáze: OpenAIRE