Electric-Field-Induced Ettingshausen Effect in a Superlattice

• Published in: physica status solidi (b) Vol. 219; no. 1; pp. 115 - 123
• Main Authors: Shmelev, G.M., Yudina, A.V., Maglevanny, I.I., Bulygin, A.S.
• Format: Journal Article
• Language: English
• Published: Berlin WILEY-VCH Verlag Berlin GmbH 01.05.2000; WILEY‐VCH Verlag Berlin GmbH
• ISSN: 0370-1972; 1521-3951
• DOI: 10.1002/1521-3951(200005)219:1<115::AID-PSSB115>3.0.CO;2-8

Using the constant electron scattering time approximation, the appearance of a temperature gradient (∇y T) in a superlattice (SL) with current jz placed in a magnetic field Hx = H and high electric field Ex (the electric‐field‐induced Ettingshausen effect), is studied (OX is the SL axis). The effect includes the Stark–cyclotron resonance leading to a non‐monotonous (and sign‐changing) dependence of the Ettingshausen effect on magnetic H and electric Ex fields. The possibility of increasing the (transverse) thermoelectric effectivity at the expense of the field Ex is taken into consideration.