George Kirczenow
Simon Fraser University
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by George Kirczenow.
Physical Review Letters | 1998
Luis G. C. Rego; George Kirczenow
Using the Landauer formulation of transport theory, we predict that dielectric quantum wires should exhibit quantized thermal conductance at low temperatures in a ballistic phonon regime. The quantum of thermal conductance is universal, independent of the characteristics of the material, and equal to
Physical Review B | 2001
Francisco Mireles; George Kirczenow
{\ensuremath{\pi}}^{2}{k}_{B}^{2}T/3h
Physical Review Letters | 2003
Eldon Emberly; George Kirczenow
where
Chemical Physics | 2002
Eldon Emberly; George Kirczenow
{k}_{B}
Solid State Communications | 1988
George Kirczenow
is the Boltzmann constant,
Physical Review B | 2000
Eldon Emberly; George Kirczenow
h
Physical Review B | 1999
Eldon Emberly; George Kirczenow
is Plancks constant, and
Physical Review B | 2001
Eldon Emberly; George Kirczenow
T
Physical Review B | 2001
George Kirczenow
is the temperature. Quantized thermal conductance should be experimentally observable in suspended nanostructures adiabatically coupled to reservoirs, devices that can be realized at the present time.
Physical Review B | 2000
Eldon Emberly; George Kirczenow
We present numerical calculations of the ballistic spin-transport properties of quasi-one-dimensional wires in the presence of the spin-orbit (Rashba) interaction. A tight-binding analog of the Rashba Hamiltonian which models the Rashba effect is used. By varying the robustness of the Rashba coupling and the width of the wire, weak and strong coupling regimes are identified. Perfect electron spin-modulation is found for the former regime, regardless of the incident Fermi energy and mode number. In the latter however, the spin-conductance has a strong energy dependence due to a nontrivial subband intermixing induced by the strong Rashba coupling. This would imply a strong suppression of the spin-modulation at higher temperatures and source-drain voltages. The results may be of relevance for the implementation of quasi-one-dimensional spin transistor devices.