Electric-Field-Induced Ettingshausen Effect in a Superlattice

✍ Scribed by G.M. Shmelev; A.V. Yudina; I.I. Maglevanny; A.S. Bulygin

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 104 KB
• Volume: 219
• Category: Article
• ISSN: 0370-1972
• DOI: 10.1002/1521-3951(200005)219:1<115::aid-pssb115>3.0.co;2-8

✦ Synopsis

Using the constant electron scattering time approximation, the appearance of a temperature gradient r y T in a superlattice (SL) with current j z placed in a magnetic field H x H and high electric field E x (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 E x fields. The possibility of increasing the (transverse) thermoelectric effectivity at the expense of the field E x is taken into consideration.