Low dimensional systems

Lifetime of resonance states of the continuous electronic spectrum of a quantum-well Cu(001) film

G. V. Wolf, Yu. P. Chuburin

Physical-Technical Institute of the Ural Branch of the Russian Academy of Sciences, Izhevsk

Abstract: The dispersion relation and lifetimes of the resonances in elastic scattering of electrons with energies above the edge of the continuous spectrum of a (001) fcc copper film have been calculated for the first time. It has been found that there is a resonance band with very long lifetimes in a specific region of electron quasi-momenta in the direction $\bar{Y}$ of the two-dimensional Brillouin zone. The specificity of these states should be taken into account when describing the transport of sliding low-energy electron beams in a quantum-well copper film.

Received: 27.12.2010

 English version: Physics of the Solid State, 2011, 53:7, 1499–1503

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