Nonlinear transport and photocurrent in 2D electronic liquids

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• Habib Rostami (Bath)
• Monday 24 March 2025, 14:00-15:30
• TCM Seminar Room.

If you have a question about this talk, please contact Bo Peng.

Nonlinear transport and optical phenomena, such as charge and spin photogalvanic effects and high-harmonic generation, are of significant interest in condensed matter physics due to their applications in photodetection, optospintronics, and nanoscale imaging of quantum materials. Understanding low-frequency nonlinear photocurrents provides a means to probe and leverage quantum geometry and many-body effects in crystalline materials. In this talk, I will review both old and recent results in nonlinear transport and optics in two-dimensional layered materials, including many-body renormalization of nonlinear optical responses in graphene and the nonlinear Hall effect. I will particularly focus on nonlinear photo-thermoelectric effects and magneto-transport in 2D Fermi liquids, highlighting their role in probing the long-lived dynamics of odd-parity Fermi liquid modes in the hydrodynamic (tomographic) regime.

This talk is part of the Theory of Condensed Matter series.

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