Hysteresis effect in the (formula presented) quantum Hall system under periodic electrostatic modulation

Min Fong Yang; Ming Che Chang

doi:10.1103/PhysRevB.64.073302

Hysteresis effect in the (formula presented) quantum Hall system under periodic electrostatic modulation

Min Fong Yang, Ming Che Chang^*

^*Corresponding author for this work

Tunghai University

Research output: Contribution to journal › Journal Article › peer-review

Abstract

The effect of a one-dimensional periodic electrostatic modulation on quantum Hall systems with filling factor (formula presented) is studied. We propose that, either when the amplitude of the modulation potential or the tilt angle of the magnetic field is varied, the system can undergo a first-order phase transition from a fully spin-polarized homogeneous state to a partially spin-polarized charge-density-wave state, and show hysteresis behavior of the spin polarization. This is confirmed by our self-consistent numerical calculations within the Hartree-Fock approximation.

Original language	English
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	64
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.64.073302
State	Published - 2001
Externally published	Yes

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abstract = "The effect of a one-dimensional periodic electrostatic modulation on quantum Hall systems with filling factor (formula presented) is studied. We propose that, either when the amplitude of the modulation potential or the tilt angle of the magnetic field is varied, the system can undergo a first-order phase transition from a fully spin-polarized homogeneous state to a partially spin-polarized charge-density-wave state, and show hysteresis behavior of the spin polarization. This is confirmed by our self-consistent numerical calculations within the Hartree-Fock approximation.",

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AB - The effect of a one-dimensional periodic electrostatic modulation on quantum Hall systems with filling factor (formula presented) is studied. We propose that, either when the amplitude of the modulation potential or the tilt angle of the magnetic field is varied, the system can undergo a first-order phase transition from a fully spin-polarized homogeneous state to a partially spin-polarized charge-density-wave state, and show hysteresis behavior of the spin polarization. This is confirmed by our self-consistent numerical calculations within the Hartree-Fock approximation.

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JO - Physical Review B - Condensed Matter and Materials Physics

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Hysteresis effect in the (formula presented) quantum Hall system under periodic electrostatic modulation

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