Giant nonlinear conductivity in 2D electron gas from substrate-induced dipolar scattering
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866910239773687808 |
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| author | Chichinadze, Dmitry V. Seidel, Alexander Nussinov, Zohar |
| author_facet | Chichinadze, Dmitry V. Seidel, Alexander Nussinov, Zohar |
| contents | Despite a surge of interest in the nonlinear transport in 2D materials, a fundamental puzzle remains: existing theoretical frameworks are unable to quantitatively account for the giant nonlinear conductivities ($\gtrsim 1 \frac{μ\text{m}}{Ω\text{V}}$) recently reported in 2D van der Waals heterostructures. Here, we introduce a mechanism based on electron scattering from a substrate-induced periodic dipole array. We show that the strict kinematic constraints, inherent to 2D scattering, lead to a singular enhancement of the nonlinear response, fundamentally dictating a natural scale of $1 \frac{μ\text{m}}{Ω\text{V}}$. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2605_20699 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Giant nonlinear conductivity in 2D electron gas from substrate-induced dipolar scattering Chichinadze, Dmitry V. Seidel, Alexander Nussinov, Zohar Strongly Correlated Electrons Mesoscale and Nanoscale Physics Quantum Gases Despite a surge of interest in the nonlinear transport in 2D materials, a fundamental puzzle remains: existing theoretical frameworks are unable to quantitatively account for the giant nonlinear conductivities ($\gtrsim 1 \frac{μ\text{m}}{Ω\text{V}}$) recently reported in 2D van der Waals heterostructures. Here, we introduce a mechanism based on electron scattering from a substrate-induced periodic dipole array. We show that the strict kinematic constraints, inherent to 2D scattering, lead to a singular enhancement of the nonlinear response, fundamentally dictating a natural scale of $1 \frac{μ\text{m}}{Ω\text{V}}$. |
| title | Giant nonlinear conductivity in 2D electron gas from substrate-induced dipolar scattering |
| topic | Strongly Correlated Electrons Mesoscale and Nanoscale Physics Quantum Gases |
| url | https://arxiv.org/abs/2605.20699 |