Measurement of cyclotron resonance relaxation time in the two-dimensional electron system

Autor: I. V. Andreev, V. N. Belyanin, V. M. Muravev, I. V. Kukushkin
Rok vydání: 2014
Předmět:
Zdroj: Applied Physics Letters. 105:202106
ISSN: 1077-3118
0003-6951
DOI: 10.1063/1.4902133
Popis: Dependence of cyclotron magneto-plasma mode relaxation time on electron concentration and temperature in the two-dimensional electron system in GaAs/AlGaAs quantum wells has been studied. Comparative analysis of cyclotron and transport relaxation time has been carried out. It was demonstrated that with the temperature increase transport relaxation time tends to cyclotron relaxation time. It was also shown that cyclotron relaxation time, as opposed to transport relaxation time, has a weak electron density dependence. The cyclotron time can exceed transport relaxation time by an order of magnitude in a low-density range.
Databáze: OpenAIRE