Study of Zn1-x-yBexMnySe mixed crystals by photothermal method
Institute of Physics, N. Copernicus University Toruń, ul. Grudziadzka 5, 87-100 Torun, Poland
2 Department of Electronics and Computer Science, Technical University Koszalin, ul. Sniadeckich 2, 75-328 Koszalin, Poland
In this paper a series of experimental piezoelectric spectra of Zn1-x-yBexMnySe (y = 0.05, x = 0.05, 0.10, 0.15) crystals are presented and discussed. Three groups of samples exhibiting different composition with different surface treatment: grinded, polished and etched were prepared. The influence of a different surface treatment on piezoelectric amplitude spectra are discussed with in model taking into account the presence of defects located on the surfaces of the samples.
© EDP Sciences, Springer-Verlag, 2008