| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1545422 | Physica E: Low-dimensional Systems and Nanostructures | 2011 | 5 Pages |
We show that an electric field appears in one layer of a bi-layer semiconductor system when a temperature gradient is applied in the other one. This trans-layer Seebeck effect exists on account of the inter-layer long-range electron–electron scattering and represents a generalization of the Coulomb drag phenomenon, defined as the mutual friction of two electron systems, to thermal perturbations. An effective thermopower coefficient αDαD is calculated within the random-phase approximation for the Coulomb interaction. At low temperature, αDαD is found to be directly proportional to the electron–electron scattering rate in 2D, τee−1.
► An electric field is induced by a temperature gradient in a bi-layer system. ► The origin of this effect is the Coulomb drag between the electrons in the layers. ► The magnitude of the effect is proportional to the electron relaxation rate.
