Eur. Phys. J. Special Topics 153, 139-142 (2008)
https://doi.org/10.1140/epjst/e2008-00412-x

Thermal diffusivity of Zn_1-xBe_xSe crystals and it's correlation with electrical conductivity and optical absorption spectra^*

¹ Silesian University of Technology, Institute Physics, Krzywoustego 2, 44-100 Gliwice, Poland
² Nicolaus Copernicus University, Institute of Physics, Grudziądzka 5/7, 87-100 Toruń, Poland

Abstract

This article presents results obtained for mixed crystal of Zn_1-xBe_xSe. Samples with different Be contents were examined to determine their thermal, optical and electrical properties. The influence of composition of investigated mixed crystals on the value of thermal diffusivity, electrical resistivity and energy gap was checked. An interesting problem is a correlation between thermal properties and other physical parameters. In this work possible correlations between the thermal diffusivity and either the optical band gap determined from photothermal spectra or electrical conductivity are studied.