Abstract
Commensurability oscillations of thermopower in a square antidot lattice are observed. The oscillations are attributed to the geometrical resonances of the classical electron motion in a magnetic field and are much more pronounced than the corresponding magnetoresistance oscillations. The off-diagonal component of the thermopower tensor (the Nernst-Ettingshausen effect) changes sign at resonances. Additional measurements of magnetoresistance verify the correctness of the method used for thermopower measurements and provide information on the temperature distribution in the sample.
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Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 81, No. 9, 2005, pp. 578–582.
Original Russian Text Copyright © 2005 by Pogosov, Budantsev, Lavrov, Plotnikov, Bakarov, Toropov.
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Pogosov, A.G., Budantsev, M.V., Lavrov, R.A. et al. Observation of commensurability oscillations of thermopower in an antidot lattice. Jetp Lett. 81, 462–466 (2005). https://doi.org/10.1134/1.1984030
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DOI: https://doi.org/10.1134/1.1984030