Conductance of three-dimensional cross junctions in the quantum ballistic regime
AUTOR(ES)
Dacal, Luis C. O., Silva, Erasmo A. de Andrada e
FONTE
Brazilian Journal of Physics
DATA DE PUBLICAÇÃO
2006-06
RESUMO
The influence of dimensionality on the conductance of semiconductor cross junctions is investigated in the effective mass approximation and quantum ballistic regime. Our calculations exhibit some similar features for both two- and three-dimensional models, namely the conductance peaks before the fundamental eigenenergy of the quantum wire that represents the sidearms and the zero conductance dip. Despite this, we show that, in general, the conductance and the electronic wave function are strongly affected when the third spatial dimension is taken into account. In other words, we prove that two-dimensional models are not suitable for representing this kind of system.
Documentos Relacionados
- Effects of effective mass discontinuity on the conductance of three-dimensional quantum wires
- Three-Dimensional Imaging In Surgery
- Three-dimensional stellarator codes
- Three-dimensional structure of a heteroclitic antigen-antibody cross-reaction complex.
- Three-dimensional structure of the yeast ribosome.