  Spin polarization induced by a temperature gradient (heat-current) in a
magnetized two-dimensional electron gas (2DEG) with Rashba spin-orbit
interaction is considered theoretically within the linear response theory.
Using the Matsubara Green function formalism we calculate the temperature
dependence of the spin polarization for arbitrary orientation of the exchange
field. The limit of a nonmagnetic 2DEG (zero exchange field) is also
considered. The physical mechanisms of the spin polarization within our scheme
are discussed.

Mesoscale and Nanoscale Physics