Magnetoresistance oscillations in multilayer systems - triple quantum wells

Abstract

Magnetoresistance of two-dimensional electron systems with several occupied subbands oscillates owing to periodic modulation of the probability of intersubband transitions by the quantizing magnetic field. In addition to previous investigations of these magneto-intersubband (MIS) oscillations in two-subband systems, we report on both experimental and theoretical studies of such a phenomenon in three-subband systems realized in triple quantum wells. We show that the presence of more than two subbands leads to a qualitatively different MIS oscillation picture, described as a superposition of several oscillating contributions. Under a continuous microwave irradiation, the magnetoresistance of triple-well systems exhibits an interference of MIS oscillations and microwaveinduced resistance oscillations. The theory explaining these phenomena is presented in the general form, valid for an arbitrary number of subbands. A comparison of theory and experiment allows us to extract temperature dependence of quantum lifetime of electrons and to confirm the applicability of the inelastic mechanism of microwave photoresistance for the description of magnetotransport in multilayer systems.

10 pages, 5 figures

References in corpus (6)

• 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
• Temperature Dependence of Microwave Photoresistance in 2D Electron Systems
• Interference oscillations of microwave photoresistance in double quantum wells
• Resonance oscillations of magnetoresistance in double quantum wells
• Nonlinear resistance of 2D electrons in crossed electric and magnetic fields

Cited by in corpus (21)

• Nonequilibrium phenomena in high Landau levels
• Microwave zero-resistance states in a bilayer electron system
• Magneto-transport characteristics of a 2D electron system driven to negative magneto-conductivity by microwave photoexcitation
• Crossover between distinct mechanisms of microwave photoresistance in bilayer systems
• Microwave-induced resistance oscillations and zero-resistance states in 2D electron systems with two occupied subbands
• Quantum lifetime of 2D electron in magnetic field
• Macroscopic transverse drift of long current-induced spin coherence in two-dimensional electron gases
• Microwave-induced magnetoresistance of two-dimensional electrons interacting with acoustic phonons
• Thermally activated intersubband scattering and oscillating magnetoresistance in quantum wells
• Long-lived nanosecond spin coherence in high-mobility 2DEGs confined in double and triple quantum wells
• Evidence for zero-differential resistance states in electronic bilayers
• Microwave-induced zero-resistance" states and second-harmonic generation in an ultraclean two-dimensional electron gas
• Large anisotropic spin relaxation time of exciton bound to donor states in triple quantum wells
• Tailoring multilayer quantum wells for spin devices
• Microwave-induced Hall resistance in bilayer electron systems
• Pseudospin anisotropy of trilayer semiconductor quantum Hall ferromagnets
• Bulk and shear viscosities in multicomponent 2D electron system
• Magnetophonon oscillations of thermoelectric power and combined resonance in two-subband electron systems
• Exact-exchange density functional theory of the integer quantum Hall effect: strict 2D limit
• Coulomb and tunneling coupled trilayer systems at zero magnetic field
• Optically-detected long-lived spin coherence in multilayer systems: Double and triple quantum wells