Direct-current control of radiation-induced differential magnetoresistance oscillations in two-dimensional electron systems

Abstract

Magnetoresistance oscillations in two-dimensional electron systems driven simultaneously by a strong direct current and a microwave irradiation, are analyzed within a unified microscopic scheme treating both excitations on an equal footing. The microwave-induced resistance oscillations are described by a parameter ${\epsilon }_{\omega }$ proportional to the radiation frequency, while the dc-induced resistance oscillations are governed by a parameter ${\epsilon }_j$ proportional to the current density. In the presence of both a microwave radiation and a strong dc, the combined parameter ${\epsilon }_{\omega }+{\epsilon }_j$ is shown to control the main resistance oscillations, in agreement with the recent measurement [Zhang {\it et al.} Phys. Rev. Lett. {\bf 98}, 106804 (2007)]

4 pages, 2 figues, published version

References in corpus (3)

• Radiation-induced magnetotransport in high-mobility two-dimensional systems: Role of electron heating
• Magnetoresistance Oscillations in Two-dimensional Electron Systems Induced by AC and DC Fields
• Current-induced magnetoresistance oscillations in two-dimensional electron systems

Cited by in corpus (5)

• Mechanisms of the microwave photoconductivity in 2D electron systems with mixed disorder
• Effect of microwave radiation on non-linear resistivity of a two-dimensional electron gas at large filling factors
• Theory of the microwave-induced photocurrent and photovoltage magnetooscillations in a spatially non-uniform 2D electron gas
• Nonlinear theory of fractional microwave-induced magnetoresistance oscillations in a dc-driven two-dimensional electron system
• Nonlinear magnetoresistance of an irradiated two-dimensional electron system