TY - JOUR

T1 - High harmonics of the cyclotron resonance in microwave transmission of a high-mobility two-dimensional electron system

AU - Savchenko, M. L.

AU - Shuvaev, A.

AU - Dmitriev, I. A.

AU - Bykov, A. A.

AU - Bakarov, A. K.

AU - Kvon, Z. D.

AU - Pimenov, A.

N1 - Publisher Copyright: © 2021 authors. Published by the American Physical Society.

PY - 2021/2/5

Y1 - 2021/2/5

N2 - We report an observation of magneto-oscillations in transmittance of the circularly polarized microwave radiation through the high-mobility two-dimensional electron system hosted by a GaAs quantum well. The oscillations reflect an enhanced absorption of radiation at high harmonics of the cyclotron resonance and follow simultaneously measured microwave-induced resistance oscillations (MIRO) in the DC transport. While the relative amplitude (up to 1%) of the transmittance oscillations appears to be small, they represent a significant (greater than 50%) modulation of the absorption coefficient. The analysis of obtained results demonstrates that the low-B decay, magnitude, and polarization dependence of the transmittance oscillations accurately follow the theory describing photon-assisted scattering between distant disorder-broadened Landau levels. The extracted sample parameters describe reasonably well the concurrently measured MIRO. Our results provide insight into the MIRO polarization immunity problem and demonstrate that high-precision transmission measurements can be a sensitive probe of high-frequency dissipative effects in high-mobility systems.

AB - We report an observation of magneto-oscillations in transmittance of the circularly polarized microwave radiation through the high-mobility two-dimensional electron system hosted by a GaAs quantum well. The oscillations reflect an enhanced absorption of radiation at high harmonics of the cyclotron resonance and follow simultaneously measured microwave-induced resistance oscillations (MIRO) in the DC transport. While the relative amplitude (up to 1%) of the transmittance oscillations appears to be small, they represent a significant (greater than 50%) modulation of the absorption coefficient. The analysis of obtained results demonstrates that the low-B decay, magnitude, and polarization dependence of the transmittance oscillations accurately follow the theory describing photon-assisted scattering between distant disorder-broadened Landau levels. The extracted sample parameters describe reasonably well the concurrently measured MIRO. Our results provide insight into the MIRO polarization immunity problem and demonstrate that high-precision transmission measurements can be a sensitive probe of high-frequency dissipative effects in high-mobility systems.

UR - http://www.scopus.com/inward/record.url?scp=85112785350&partnerID=8YFLogxK

U2 - 10.1103/PhysRevResearch.3.L012013

DO - 10.1103/PhysRevResearch.3.L012013

M3 - Article

AN - SCOPUS:85112785350

VL - 3

JO - Physical Review Research

JF - Physical Review Research

SN - 2643-1564

IS - 1

M1 - L012013

ER -