Inter-subband resistance oscillations in crossed electric and magnetic fields

Abstract

Quantum oscillations of nonlinear resistance are investigated in response to electric current and magnetic field applied perpendicular to single GaAs quantum wells with two populated subbands. At small magnetic fields current-induced oscillations appear as Landau-Zener transitions between Landau levels inside the lowest subband. Period of these oscillations is proportional to the magnetic field. At high magnetic fields different kind of quantum oscillations emerges with a period,which is independent of the magnetic field. At a fixed current the oscillations are periodic in inverse magnetic field with a period that is independent of the dc bias. The proposed model considers these oscillations as a result of spatial variations of the energy separation between two subbands induced by the electric current.

9 Pages, 10 Figures

References in corpus (8)

• Theory of microwave-induced oscillations in the magnetoconductivity of a 2D electron gas
• Magnetotransport in a two-dimensional electron system in dc electric fields
• Non-linear Resistivity of a Two-Dimensional Electron Gas in a Magnetic Field
• Zero differential resistance state of two dimensional electron systems in strong magnetic fields
• Nonlinear resistance of 2D electrons in crossed electric and magnetic fields
• Zero differential resistance in two-dimensional electron systems at large filling factors
• Non-linear transport phenomena in a two-subband system
• Quantum oscillations of dissipative resistance in crossed electric and magnetic fields

Cited by in corpus (4)

• Nonequilibrium phenomena in high Landau levels
• Resistance oscillations of two-dimensional electrons in crossed electric and tilted magnetic fields
• Electron--electron scattering and conductivity of disordered systems with Galilean-invariant spectrum
• Nonlinear AC and DC Conductivities in a Two-Subband n-GaAs/AlAs Heterostructure