Current direction induced rectification effect on (integer) quantized Hall plateaus

Abstract

Current polarization induced rectification of the quantized Hall plateaus (QHPs) is studied within a Hartree type mean field approximation for asymmetrically depleted samples. We first investigate the existence of the current carrying incompressible strips (ISs), by solving the self-consistent equations, and their influence on magneto-transport (MT) properties. Next, the widths of the ISs are examined in terms of the steepness of the confining potential profile considering gate defined Hall bars. The corresponding MT coefficients are calculated using a local Ohm's law for a large fixed current and are compared for symmetric and asymmetric depleted samples. We predict that, the extend of the QHPs strongly depend on the current polarization, in the out of linear response regime, when considering asymmetrically depleted samples. Our results, concerning the extend of the QHPs depending on the current polarization are in contrast to the ones of the conventional theories of the integer quantized Hall effect (IQHE). We propose certain experimental conditions to test our theoretical predictions at high mobility, narrow samples.

4 pages, 3 figures, submitted to Phys. Rev

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Cited by in corpus (10)

• Asymmetric non-linear response of the IQHE
• Quantum Hall Resistance Overshoot in 2-Dimensional Electron Gases - Theory and Experiment
• Interaction mediated asymmetries of the quantized Hall effect
• Current-induced asymmetries of incompressible stripes in narrow quantum Hall systems
• Screening model of metallic non-ideal contacts at integer quantized Hall regime
• Spatial Distribution of the Incompressible Strips at Aharonov-Bohm Interferometer
• Edge electrostatics revisited
• The visibility of IQHE at sharp edges: Experimental proposals based on interactions and edge electrostatics
• The current polarization rectification of the integer quantized Hall effect
• Microscopic theory of the activated behavior of the quantized Hall effect