Nonlocal drag thermoelectricity generated by ferroelectric van der Waals heterostructures
Physical review(2023)
Abstract
The "ferron" excitations of the electric-dipolar order carry energy as well as electric dipoles. Here, we predict a nonlocal ferron-drag effect in a ferroelectric on top of a metallic film: An electric current in the conductor generates a heat current in the ferroelectric by long-range charge-dipole interactions. The nonlocal Peltier and its reciprocal Seebeck effect can be controlled by electric gates and detected thermographically. We predict large effects for van der Waals ferroelectric films on graphene.
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Key words
nonlocal drag thermoelectricity,ferroelectric van der waals,heterostructures
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