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Hamburg 2001 – scientific programme

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HL: Halbleiterphysik

HL 7: Poster I

HL 7.47: Poster

Monday, March 26, 2001, 10:30–19:00, Rang S\ 3

Description of oDescription of overlapping resonances in the tunneling transport throuhg semiconductor nanostructures — •E. R. Racec Racec1,2 and Ulrich Wulf11Technische Universitaet Cottbus, Fakultaet 1, 03013 Cottbus, Germany Postfach 101344, — 2University of Bucharest, Faculty of Physics, P.O.Box Mg-11, 76900 Bucharest, Romania.

A resonance formalism is used to obtain an expression for the transmission coefficient T that is appropriate to describe resonances that are arbitrarily close to each other in energy. The resulting expressions are compared with the numerical calculation of T. For the quasi-isolated transmission maxima we obtain a particular expression of T as a sum of Fano functions with a complex asymmetry parameter plus the overlapping resonance terms.

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