The theoretical description of microwave-induced intersubband scattering in a 2D electron gas exposed to a magnetic field on liquid helium with the inhomogeneous distribution of subband excitation energies is presented. We demonstrate that the alignment of the staircases of Landau levels in the ground and the first excited subbands differently affects the microwave resonant absorption and in-plane magnetoconductivity. In contrast with previously used models, the microwave excitation rate is shown to have a strong dependence on the magnetic field with sharp minima at the Landau level alignment points even in a heavily inhomogeneous 2D electron system. The inhomogeneous distribution of transverse-quantization eigenfrequencies changes the lineshape of the intersubband resonance and substantially broadens conductivity magneto-oscillations. These results explain unexpected experimental observations reported previously.
Skip Nav Destination
Microwave-induced intersubband scattering and magneto-oscillation phenomena in an inhomogeneous 2D electron gas on liquid helium
Article navigation
August 2023
Research Article|
August 01 2023
Microwave-induced intersubband scattering and magneto-oscillation phenomena in an inhomogeneous 2D electron gas on liquid helium
Yu. P. Monarkha
Yu. P. Monarkha
a)
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine
, Kharkiv 61103, Ukraine
a)Author to whom correspondence should be addressed: monarkha@ilt.kharkov.ua
Search for other works by this author on:
a)Author to whom correspondence should be addressed: monarkha@ilt.kharkov.ua
Fiz. Nizk. Temp. 49, 1036–1049 (August 2023)
Low Temp. Phys. 49, 942–954 (2023)
Article history
Received:
June 27 2023
Citation
Yu. P. Monarkha; Microwave-induced intersubband scattering and magneto-oscillation phenomena in an inhomogeneous 2D electron gas on liquid helium. Low Temp. Phys. 1 August 2023; 49 (8): 942–954. https://doi.org/10.1063/10.0020161
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Sign in via your Institution
Sign in via your InstitutionPay-Per-View Access
$40.00
49
Views
Citing articles via
Related Content
Coulombic effects on magnetoconductivity oscillations induced by microwave excitation in multisubband two-dimensional electron systems
Low Temp. Phys. (June 2012)
Magnetoconductivity oscillations induced by intersubband excitation in a degenerate 2D electron gas
Low Temp. Phys. (June 2020)
Magnetooscillations of temperature and microwave absorption in a highly correlated 2D electron gas on liquid helium
Low Temp. Phys. (April 2021)
Vibrational investigations of CO2-H2O, CO2-(H2O)2, and (CO2)2-H2O complexes isolated in solid neon
J. Chem. Phys. (December 2015)