Phonon scattering in nanoscale systems: lowest order expansion of the current and power expressions
Magnus Paulsson; Thomas Frederiksen; Mads Brandbyge; Magnus Paulsson; MIC - Department of Micro and Nanotechnology, NanoDTU, Technical University of Denmark, Ørsteds Plads, Bldg. 345E, DK-2800 Lyngby, Denmark; Thomas Frederiksen; MIC - Department of Micro and Nanotechnology, NanoDTU, Technical University of Denmark, Ørsteds Plads, Bldg. 345E, DK-2800 Lyngby, Denmark; Mads Brandbyge; MIC - Department of Micro and Nanotechnology, NanoDTU, Technical University of Denmark, Ørsteds Plads, Bldg. 345E, DK-2800 Lyngby, Denmark
Журнал:
Journal of Physics: Conference Series
Дата:
2006-04-01
Аннотация:
We use the non-equilibrium Green's function method to describe the effects of phonon scattering on the conductance of nano-scale devices. Useful and accurate approximations are developed that both provide (i) computationally simple formulas for large systems and (ii) simple analytical models. In addition, the simple models can be used to fit experimental data and provide physical parameters.
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