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Effect of Boundary Conditions on the Interface Tamm's States
Author(s) -
Bejenari I.,
Malkova N.,
Kantser V.G.
Publication year - 2001
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200102)223:3<785::aid-pssb785>3.0.co;2-x
Subject(s) - analogy , interface (matter) , heterojunction , excited state , semiconductor , band gap , condensed matter physics , boundary value problem , boundary (topology) , work (physics) , position (finance) , physics , materials science , quantum mechanics , mathematical analysis , mathematics , molecule , linguistics , finance , economics , philosophy , gibbs isotherm
The interface Tamm's states of heterojunctions formed from narrow‐gap semiconductors are intensively studied. Trying to elucidate the effect of the boundary conditions on the interface states, in this work we compare results of theoretical calculations performed for two different cases of the position‐dependent band‐gap junction: when it is continuous and when it is a set of step junctions. It is shown that there is a direct analogy between these two cases. This analogy concerns not only the value of the energy of the so‐called excited interface states but also the form of their wave functions.