Nonlinear transport in 2D electron gas exhibiting colossal negative magnetoresistance
arXiv:1410.6116 · doi:10.1103/PhysRevB.90.201301
Abstract
We report on nonlinear transport measurements in a GaAs/AlGaAs quantum well exhibiting a colossal negative magnetoresistance effect. Under applied dc bias, the magnetoresistance becomes nonmonotonic, exhibiting distinct extrema that move to higher magnetic fields with increasing current. In the range of magnetic fields corresponding to the resistivity minimum at zero bias, the resistivity increases linearly with current and the rate of this increase scales with the inverse magnetic field. The latter observation is consistent with the theory, proposed more than 35 years ago, considering classical memory effects in the presence of strong, dilute scatterers.
arXiv comment~4 pages, 5 figures
References in corpus (19)
- Nonequilibrium phenomena in high Landau levels
- Giant microwave photoresistance of two-dimensional electron gas
- Zener Tunneling Between Landau Orbits in a High-Mobility Two-Dimensional Electron Gas
- Magnetotransport in a two-dimensional electron system in dc electric fields
- Quasiclassical negative magnetoresistance of a 2D electron gas: interplay of strong scatterers and smooth disorder
- Non-linear Resistivity of a Two-Dimensional Electron Gas in a Magnetic Field
- Magnetoresistance in a High Mobility Two-Dimensional Electron Gas
- A New Class of Magnetoresistance Oscillations: Interaction of a Two-Dimensional Electron Gas with Leaky Interface Phonons
- Observation of a cyclotron harmonic spike in microwave-induced resistances in ultraclean GaAs/AlGaAs quantum wells
- Giant negative magnetoresistance in high-mobility 2D electron systems
- Quasiclassical magnetotransport in a random array of antidots
- Colossal negative magnetoresistance in a 2D electron gas
- Giant microwave photoresistivity in a high-mobility quantum Hall system
- Role of electron-electron interactions in nonlinear transport in 2D electron systems
- Classical mechanism for negative magnetoresistance in two dimensions
- Magnetoresistance Induced by Rare Strong Scatterers in a High Mobility 2DEG
- Anomalous Low-Field Classical Magnetoresistance in Two Dimensions
- Zero differential resistance in two-dimensional electron systems at large filling factors
- Hall field-induced resistance oscillations in tilted magnetic fields
Cited by in corpus (4)
- Scattering mechanisms in state-of-the-art GaAs/AlGaAs quantum wells
- Shubnikov-de Haas oscillations in two-dimensional electron gas under subterahertz radiation
- Transport anisotropy in Ge quantum wells in the absence of quantum oscillations
- Non-Ohmic negative longitudinal magnetoresistance in two-dimensional electron gas