This article is cited in 2 papers

Low dimensional systems

Effect of the $\delta$-shaped quantum well at the one-dimensional lattice boundary on properties of Tamm-type surface electronic states

Yu. O. Averkov, V. M. Yakovenko

Usikov Institute of Radiophysics and Electronics of the National Academy of Sciences of Ukraine

Abstract: The Tamm-type surface electronic states at the boundary of the one-dimensional structure with periodically potential profile have been theoretically studied under the condition that the $\delta$-shaped quantum well is at this boundary. The properties of surface electronic states in such a structure have been compared with Tamm electronic states in the absence of a quantum well at the lattice boundary and with electronic states localized near the $\delta$-shaped potential well deep in the lattice. In particular, it has been shown that the existence of the $\delta$-shaped potential well at the lattice boundary facilitates a significant increase in the degree of localization of Tamm-type surface electronic states and makes possible the appearance of these states at arbitrarily small heights of lattice potential barriers.

Received: 09.06.2011
Accepted: 10.08.2011

 English version: Physics of the Solid State, 2012, 54:3, 630–635

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