The Nernst effect is a phenomenon in thermoelectricity that describes the generation of a transverse electric field in a conducting material when it is subjected to a temperature gradient and a magnetic field. Specifically, when there is a temperature difference within a conducting material (for example, a metal or semiconductor) and an external magnetic field is applied perpendicular to both the temperature gradient and the electric current, an electric voltage is induced perpendicular to both the current and the temperature gradient.
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