Abstract
Anomalous electrical properties have been observed in CdxHg1−x Te films grown on GaAs substrates by MBE at elevated temperature. The anomalies are manifested in the conductivity anisotropy, modifications of the transmission and photoconductivity spectra upon low-temperature annealing, and the existence of a periodic undulatory surface microprofile. The temperature dependence of conductivity along and across the microprofile waves has been studied. It is suggested that a CdxHg1−x Te film with anomalous electrical properties is a spontaneously formed periodic structure in the form of vertical nanowalls of different compositions. Possible mechanisms for the formation of such a structure are discussed.
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Translated from Fizika i Tekhnika Poluprovodnikov, Vol. 37, No. 11, 2003, pp. 1369–1373.
Original Russian Text Copyright © 2003 by Bakhtin, Varavin, Dvoretski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \), Kravchenko, Latyshev, Mikcha\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \)lov, Sabinina, Sidorov, Yakushev.
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Bakhtin, P.A., Varavin, V.S., Dvoretskii, S.A. et al. Spontaneous formation of the periodic composition-modulated nanostructure in CdxHg1−x Te films. Semiconductors 37, 1331–1335 (2003). https://doi.org/10.1134/1.1626219
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DOI: https://doi.org/10.1134/1.1626219