Abstract
Propagation of nonequilibrium acoustic phonons in ZnTe single crystals at helium temperature was studied with phonons being both optically generated and produced by a metal-film heater. Experiments with [110] ZnTe allowed for the detection of the arrival of longitudinal and transverse acoustic phonons, which are particularly well resolved when generated by a heated metal film. A bolometer also detected emission of ZnTe material with a time constant τ ∼ 90 ns, which can apparently be attributed to the luminescence of oxygen complexes, because the lifetimes of other complexes and bound excitons are substantially shorter.
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Translated from Fizika i Tekhnika Poluprovodnikov, Vol. 37, No. 5, 2003, pp. 539–542.
Original Russian Text Copyright © 2003 by Galkina, Klokov, Sharkov, Korostelin, Za\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \)tsev.
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Galkina, T.I., Klokov, A.Y., Sharkov, A.I. et al. Propagation of nonequilibrium phonons in single-crystal ZnTe. Semiconductors 37, 519–522 (2003). https://doi.org/10.1134/1.1575353
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DOI: https://doi.org/10.1134/1.1575353