Počet záznamů: 1
Dynamics of electrons in gradient nanostructures (exactly solvable model)
0341167 - URE-Y 2010 RIV DE eng J - Článek v odborném periodiku
Shvartsburg, A. B. - Kuzmiak, Vladimír - Petite, G.
Dynamics of electrons in gradient nanostructures (exactly solvable model).
European Physical Journal B. Roč. 72, č. 1 (2009), s. 77-88 ISSN 1434-6028
Výzkumný záměr: CEZ:AV0Z20670512
Klíčová slova: wave propagation * tunneling * electronic transport
Kód oboru RIV: JA - Elektronika a optoelektronika, elektrotechnika
Impakt faktor: 1.466, rok: 2009
A flexible multi-parameter exactly solvable model of potential profile, containing an arbitrary number of continuous smoothly shaped barriers and wells, both equal or unequal, characterized by finite values and continuous profiles of the potential and of its gradient, is presented. We demonstrate an influence of both gradient and curvature of these potentials on the electron transport and spectra of symmetric and asymmetric double-well (DW) potentials. The use of this model is simplified due to one to one correspondence between the algorithms of calculation of the transmittance of convex barriers and energy spectra of concave wells. We have shown that the resonant contrast between maximum and minimum in over-barrier reflectivity of curvilinear barrier exceeds significantly the analogous effect for rectangular barrier with the same height and width.
Trvalý link: http://hdl.handle.net/11104/0184241