Abstract
We examine the influence of microwave photoexcitation on the amplitude of Shubnikov--de Haas (SdH) oscillations in a two-dimensional GaAs/AlGaAs electron system in a regime where the cyclotron frequency ${\ensuremath{\omega}}_{c}$ and the microwave angular frequency $\ensuremath{\omega}$ satisfy $2\ensuremath{\omega}\ensuremath{\leqslant}{\ensuremath{\omega}}_{c}\ensuremath{\leqslant}3.5\ensuremath{\omega}$. A SdH lineshape analysis indicates that increasing the incident microwave power has a weak effect on the amplitude of the SdH oscillations, in comparison to the influence of modest temperature changes on the dark-specimen SdH effect. The results indicate negligible electron heating under modest microwave photoexcitation, in good agreement with theoretical predictions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
