High order fractional microwave induced resistance oscillations in 2D systems

Abstract

We report on the observation of microwave-induced resistance oscillations associated with the fractional ratio n/m of the microwave irradiation frequency to the cyclotron frequency for m up to 8 in a two-dimensional electron system with high electron density. The features are quenched at high microwave frequencies independent of the fractional order m. We analyze temperature, power, and frequency dependencies of the magnetoresistance oscillations and discuss them in connection with existing theories.

5 pages, 5 figures

References in corpus (5)

• Theory of microwave-induced oscillations in the magnetoconductivity of a 2D electron gas
• Microwave photoconductivity of a 2D electron gas: Mechanisms and their interplay at high radiation power
• Interference oscillations of microwave photoresistance in double quantum wells
• Theory of the fractional microwave-induced resistance oscillations
• Microwave induced magnetoresistance oscillations at the subharmonics of the cyclotron resonance