This article is cited in 3 papers

Low dimensional systems

Manifestation of the composition inhomogeneity of Zn$_{1-x}$Mg$_x$Te quantum wires in Raman spectra

T. N. Zavaritskaya^a, I. V. Kucherenko^a, G. Karczewski^b, N. N. Mel'nik^a, V. S. Vinogradov^a, W. Zaleszczyk<sup>b

a</sup> P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
^b Institute of Physics, Polish Academy of Sciences, Warsaw, 02-668, Poland

Abstract: The resonant Raman spectra of Zn$_{1-x}$Mg$_x$Te quantum wires have been investigated. The dependences of the frequencies of longitudinal optical phonons of the ZnTe-like and MgTe-like modes (LO1 and LO2) on the photon energy have been found. The character of these dependences correlates with the variation in the frequencies of optical phonons of the Zn$_{1-x}$Mg$_x$Te alloys on the composition $(x)$. This gives grounds to assume that the quantum wires are inhomogeneous in the composition. This assumption is also confirmed by the fact that the intensity ratio of the LO2 and LO1 modes in the Raman spectra increases with increasing excitation energy.

Received: 25.05.2010

 English version: Physics of the Solid State, 2011, 53:2, 407–410

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