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Proceedings Paper

Quantum size oscillations in optical and electric properties of superthin metal films
Author(s): L. A. Kuzik; Yuriy Y. Petrov; V. A. Yakovlev; Guerman N. Zhizhin; Fedor A. Pudonin; Peter Grosse; Volkmar Offerman
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Paper Abstract

Prepared by radio frequency sputtering superthin Nb and Cu films on (alpha) -quartz and silicon have been studied. We have measured reflectivity and transmittance IR spectra of the films and estimated the imaginary part of their dielectric function from these spectra. The oscillations with a period of 6 angstrom were found on the film thickness dependence of this value for niobium and with a period of 2 angstrom for copper. The same oscillations exhibit in dc resistivity measurements too. We assume that oscillations are due to quantum size effects in the film, because their periods are of the order of the Fermi wavelengths in these metals. Similar effects were observed in surface polariton and surface electromagnetic wave measurements. Temperature measurements of reflectivity and dc resistance have shown that the period as well as the relative amplitude of oscillations are practically temperature independent.

Paper Details

Date Published: 31 January 1994
PDF: 2 pages
Proc. SPIE 2089, 9th International Conference on Fourier Transform Spectroscopy, (31 January 1994); doi: 10.1117/12.166616
Show Author Affiliations
L. A. Kuzik, Institute of Spectroscopy (Russia)
Yuriy Y. Petrov, Institute of Spectroscopy (Russia)
V. A. Yakovlev, Institute of Spectroscopy (Russia)
Guerman N. Zhizhin, Institute of Spectroscopy (Russia)
Fedor A. Pudonin, Lebedev Physical Institute (Russia)
Peter Grosse, RWTH Aachen (Germany)
Volkmar Offerman, RWTH Aachen (Germany)

Published in SPIE Proceedings Vol. 2089:
9th International Conference on Fourier Transform Spectroscopy
John E. Bertie; Hal Wieser, Editor(s)

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