Natural electron oscillations in granular indium films deposited on rough surfaces of NaCl and KCl single crystals |
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Authors: | I N Shklyarevski? Yu Yu Bondarenko N A Makarovskii |
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Institution: | (1) Kharkov State University, Kharkov, 370077, Ukraine |
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Abstract: | Two plasma resonance bands were simultaneously observed in granular indium films deposited on rough surfaces of NaCl and KCl single crystals; one of them is caused by a combined action of the light-wave field and of the field created by the dipole grains, and the other, by the light-wave field alone with the frequency of natural electron oscillations ω0 in the grains. The indium plasma frequency, calculated from the measured frequencies ω0 and known dielectric constants of NaCl and KCl, agrees well with the known plasma frequency of bulk indium. An anisotropy in the plasma resonance band of granular indium films deposited on a rough NaCl surface was found and interpreted. |
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