Witryna15 cze 1990 · An unusual saturation of the low-temperature conductivity was observed in the purest epilayers. For layers with a low level of compensation, such an effect has … WitrynaImpurities play an important role in the nucleation of other phase transitions. For example, the presence of foreign elements may have important effects on the …
Materials Free Full-Text Roles of Bulk and Surface Chemistry in …
Witryna1 lis 1960 · Impurity Conduction at Low Concentrations Allen Miller and Elihu Abrahams Phys. Rev. 120, 745 – Published 1 November 1960 More PDF Export Citation Abstract The conductivity of an n -type semiconductor has been calculated in the … Witryna1 mar 1971 · IMPURITY STATES For small impurity concentrations, implying negligible interaction between impurity atoms, the energy dependence of the impurity states is adequately described by a delta function. As the impurity concentration increases, interaction begins to become important and the (spatially averaged) … orange chainsaw trousers
Impurity-Induced Pinning,Damping and Metastability of …
Witryna1 wrz 2007 · We report on admittance spectroscopy (AS) investigations taken on aluminum (Al)doped 6H-SiC crystals at low temperatures. Admittance spectra taken on Schottky contacts of highly doped samples... Witrynaessentially equal to the donor impurity concentration. The thermal-equilibrium majority and minority carrier concentrations can differ by many orders of magnitude. Example 2) Determine the thermal equilibrium electron and hole concentrations for a given doping concentration. Consider an germanium sample at T = 300°K in which N d = 5 x 1013 … Witryna27 wrz 2024 · Electronic conduction in the metallic-sputtered YSZ electrolyte could be another possible cause for the low sensitivity at low oxygen partial pressures as suggested by Sridhar . The electronic conductivity could be enhanced by the presence of silver impurities, as found by the XPS analysis. orange chainsaw