A. A. Bykov, I. S. Strygin, A. V. Goran, E. E. Rodyakina, D. V. Nomokonov, I. V. Marchishin, S. Abedi, S. A. Vitkalov, “Microwave-induced magneto-intersubband scattering in a square lattice of antidots”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2019, Volume 110, Issue 10,Pages <nobr>671

This article is cited in 3 papers

CONDENSED MATTER

Microwave-induced magneto-intersubband scattering in a square lattice of antidots

A. A. Bykov^ab, I. S. Strygin^ba, A. V. Goran^a, E. E. Rodyakina^ab, D. V. Nomokonov^a, I. V. Marchishin^a, S. Abedi^c, S. A. Vitkalov^c

^a Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
^b Novosibirsk State University, Novosibirsk, 630090 Russia
^c Physics Department, City College of the City University of New York, NY 10031, USA

Abstract: The effect of microwave radiation on low-temperature electron magnetotransport in a square antidot lattice with a period of $d \approx 0.8\,\mu$m based on a GaAs quantum well with two occupied energy subbands $E_1$ and $E_2$ is investigated. It is shown that, owing to a significant difference between the electron densities in the subbands, commensurability oscillations of the resistance in the investigated antidot lattice are observed only for the first subband. It is found that microwave irradiation under the cyclotron resonance condition results in the formation of resistance oscillations periodic in the inverse magnetic field in the region of the main commensurability peak. It is established that the period of these oscillations corresponds to the period of magneto-intersubband oscillations. The observed effect is explained by the increase in the rate of intersubband scattering caused by the difference between the electron heating in the subbands $E_1$ and $E_2$.

Received: 09.10.2019
Revised: 09.10.2019
Accepted: 09.10.2019

DOI: 10.1134/S0370274X19220065