Fractional microwave-induced resistance oscillations

2007/09/13 by I. A. Dmitriev, И. А. Дмитриев, A. D. Mirlin +1
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.dis-nn #cond-mat.mes-hall

paper · pdf · doi:10.1016/j.physe.2007.09.003

3 pages, 2 figures; Proceedings of EP2DS17 to be published in Physica E; less technical version of arXiv:0707.0990

openalex publication_date 2007/09/13 · arxiv created 2007/11/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We develop a systematic theory of microwave-induced oscillations in magnetoresistivity of a 2D electron gas in the vicinity of fractional harmonics of the cyclotron resonance, observed in recent experiments. We show that in the limit of well-separated Landau levels the effect is dominated by the multiphoton inelastic mechanism. At moderate magnetic field, two single-photon mechanisms become important. One of them is due to resonant series of multiple single-photon transitions, while the other originates from microwave-induced sidebands in the density of states of disorder-broadened Landau levels.

Citations

• Theory of Fractional Microwave-Induced Resistance Oscillations
• Microwave photoconductivity of a two-dimensional electron gas: Mechanisms and their interplay at high radiation power
• Theory of microwave-induced oscillations in the magnetoconductivity of a two-dimensional electron gas
• Multiple and virtual photon processes in radiation-induced magnetoresistance oscillations in two-dimensional electron systems