Abstract
The Photo-stimulated thermo-magnetoelectric effect in cylindrical quantum wires (CQW) under the effect of confined optical phonons (OP) is investigated. Analytical expressions of the Ettingshausen coefficient (EC), the Peltier coefficient (PC) and the temperature difference are obtained. The limitation for unconfined OP case and bulk semiconductor case could be achieved. Numerical evaluation for GaAs CQW with an infinite potential reveals that confined OP increase the EC about 2.5 times and decrease the PC about 1.01 times compared with the unconfined OP case. The appearance of an EMW with amplitude 107 V m−1 could rise the EC about 3.35 times and reduce the PC about 1.02 times. The EC and the PC start changing rapidly as the CQW radius is smaller than 20nm. The values of temperature difference are the same order as that measured for pure bismuth crystal and its changing sign is connected to previous experimental result.
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