INORGANIC MATERIALS, vol.42, pp.937-941, 2006 (SCI-Expanded)
The effect of rare-earth doping (R = Gd, Dy, Ho) to different levels (0, 10(-5), 10(-4), 10(-3), 10(-2), and 10(-1) at %) on threshold switching and low-frequency current oscillations in single crystals of indium selenide, a layered III-VI semiconductor, has been studied in broad ranges of temperatures (77-400 K), wavelengths (0.30-3.50 mu m), and illuminances (up to similar to 10(2) lx). The results are interpreted in terms of the anisotropic chemical bonding in n-InSe and its response to rare-earth doping.