Nonlinear Hall Effect in a Semiconductor Heterostructure with Rashba and Dresselhaus Effects

Abstract We report a nonlinear Hall effect in a high-mobility InAs quantum-well two-dimensional electron gas (2DEG) with coexisting Rashba and Dresselhaus spin–orbit interactions. Under zero magnetic field, a second-harmonic transverse electric field emerges that scales quadratically with current density and is significantly larger than the second-harmonic longitudinal response. Angle-dependent measurements reveal a pronounced 2-fold anisotropy that follows the combined spin–orbit field. This 2-fold symmetry reflects the anisotropic spin–orbit field generated by coexisting Rashba and Dresselhaus interactions rather than crystal symmetry. The normalized signal reaches ∼10–9 V–1 m and persists up to room temperature. Conductivity scaling shows a quadratic dependence consistent with skew-scattering-dominated transport. These results establish conventional semiconductor 2DEGs as a promising platform for spin-orbit-driven nonlinear transport and rectification functionalities.

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Publication Details

Journal
Nano Letters
Published
2026-11-02
DOI
https://doi.org/10.1021/acs.nanolett.6c03601
Primary Topic
Quantum and electron transport phenomena
Type
article
Field-Weighted Citation Impact
0.00

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article

Nonlinear Hall Effect in a Semiconductor Heterostructure with Rashba and Dresselhaus Effects

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3 links
Nano Letters
Quantum and electron transport phenomena
article

Nonlinear Hall Effect in a Semiconductor Heterostructure with Rashba and Dresselhaus Effects

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article en

Abstract

Abstract We report a nonlinear Hall effect in a high-mobility InAs quantum-well two-dimensional electron gas (2DEG) with coexisting Rashba and Dresselhaus spin–orbit interactions. Under zero magnetic field, a second-harmonic transverse electric field emerges that scales quadratically with current density and is significantly larger than the second-harmonic longitudinal response. Angle-dependent measurements reveal a pronounced 2-fold anisotropy that follows the combined spin–orbit field. This 2-fold symmetry reflects the anisotropic spin–orbit field generated by coexisting Rashba and Dresselhaus interactions rather than crystal symmetry. The normalized signal reaches ∼10–9 V–1 m and persists up to room temperature. Conductivity scaling shows a quadratic dependence consistent with skew-scattering-dominated transport. These results establish conventional semiconductor 2DEGs as a promising platform for spin-orbit-driven nonlinear transport and rectification functionalities.

Nano Letters
Pohang University of Science and Technology (KR), Seoul National University (KR), Yonsei University (KR), Korea University (KR), Kyung Hee University (KR), Korea Institute of Science and Technology (KR)
Yonsei University, Korea Institute of Science and Technology, National Research Foundation of Korea, National Research Council of Science and Technology, KU-KIST Graduate School of Converging Science and Technology
Openalex Percentile: Top 23%
Quantum and electron transport phenomena
DOIOpen Access PDFOpenAlex
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