Nonlinear electromagnetic response for Hall effect in time-reversal breaking materials
- URL: http://arxiv.org/abs/2302.02819v2
- Date: Sat, 29 Jun 2024 13:07:57 GMT
- Title: Nonlinear electromagnetic response for Hall effect in time-reversal breaking materials
- Authors: Anwei Zhang, Jun-Won Rhim,
- Abstract summary: We show that a new type of nonlinear Hall current can occur in the time-reversal breaking materials.
Such a Hall response is generated by the oscillation of the electromagnetic field.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: It is known that materials with broken time-reversal symmetry can have Hall response. Here we show that in addition to the conventional currents, a new type of nonlinear Hall current can occur in the time-reversal breaking materials within the second-order response to in-plane electric and vertical magnetic fields. Such a Hall response is generated by the oscillation of the electromagnetic field and has a quantum origin arising from a novel dipole associated with the Berry curvature and band velocity. We demonstrate that the massive Dirac model of LaAlO3/LaNiO3/LaAlO3 quantum well can be used to detect this Hall effect. Our work widens the theory of the Hall effect in the time-reversal breaking materials by proposing a new kind of nonlinear electromagnetic response.
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