The authors derive and analyze the second-order electric-field contributions to current in topological Dirac semimetals with parallel magnetic field, focusing on Berry curvature dipole and field-induced terms, and propose experimental tests via anomalous Hall resistivity in specific materials.
Semiclassical theory of the photogalvanic effect in non-centrosymmetric systems
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abstract
We develop a semiclassical theory of nonlinear transport and the photogalvanic effect in non-centrosymmetric media. We show that terms in semiclassical kinetic equations for electron motion which are associated with the Berry curvature and side jumps give rise to a dc current quadratic in the amplitude of the ac electric field. We demonstrate that the circular photogalvanic effect is governed by these terms in contrast to the linear photogalvanic effect and nonlinear I-V characteristics which are governed mainly by the skew scattering mechanism. In addition, the Berry curvature contribution to the magnetic-field induced photogalvanic effect is calculated.
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UNVERDICTED 3representative citing papers
Nonlinear thermal and thermoelectric responses are shown to encode quantum geometry and satisfy relations parallel to the Wiedemann-Franz and Mott laws in systems with broken symmetries.
A giant cyclotron resonance with polarity-switching peak is predicted in the nonlinear valley Hall photocurrent of inversion-asymmetric 2D semiconductors via skew scattering in a two-band model under THz and magnetic fields.
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Nonlinear Hall effect in topological Dirac semimetals in parallel magnetic field
The authors derive and analyze the second-order electric-field contributions to current in topological Dirac semimetals with parallel magnetic field, focusing on Berry curvature dipole and field-induced terms, and propose experimental tests via anomalous Hall resistivity in specific materials.
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Nonlinear thermal and thermoelectric transport from quantum geometry
Nonlinear thermal and thermoelectric responses are shown to encode quantum geometry and satisfy relations parallel to the Wiedemann-Franz and Mott laws in systems with broken symmetries.
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Giant resonant nonlinear THz valley Hall effect in 2D Dirac semiconductors
A giant cyclotron resonance with polarity-switching peak is predicted in the nonlinear valley Hall photocurrent of inversion-asymmetric 2D semiconductors via skew scattering in a two-band model under THz and magnetic fields.