Ballistic thermoelectric effects in metallic point contacts
É. N. BogachekPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovA. G. ShkorbatovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovI. O. KulikPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov
ABI
Abstract
Phonon-drag thermopower quenching in metallic point contacts of size smaller than electron–phonon relaxation length is investigated. This effect makes it possible to measure the absolute value of phonon-drag thermopower in bulk metals in a circuit formed by similar metals by point-contact technique. The asymmetry in heat release at contact sides upon a passage of current and the “ballistic Peltier effect” associated with it and consisting in the emergence of a temperature difference depending on current in a circuit made of a single metal are calculated.
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