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5 papers · 2 filters
A logarithmic contribution to the density of states of rectangular Andreev billiards
A. Kormányos, Z. Kaufmann, J. Cserti +1
We demonstrate that the exact quantum mechanical calculations are in good agreement with the semiclassical predictions for rectangular Andreev billiards and therefore for a large n…
Giant magnetothermopower of magnon-assisted transport in ferromagnetic tunnel junctions
Edward McCann, Vladimir I. Fal'ko
We present a theoretical description of the thermopower due to magnon-assisted tunneling in a mesoscopic tunnel junction between two ferromagnetic metals. The thermopower is genera…
Proximity-induced sub-gaps in Andreev billiards
J. Cserti, A. Kormányos, Z. Kaufmann +2
We examine the density of states of an Andreev billiard and show that any billiard with a finite upper cut-off in the path length distribution will possess an energy gap on…
Magnetothermopower and magnon-assisted transport in ferromagnetic tunnel junctions
Edward McCann, Vladimir I. Fal'ko
We present a model of the thermopower in a mesoscopic tunnel junction between two ferromagnetic metals based upon magnon-assisted tunneling processes. In our model, the thermopower…
Giant magneto-conductance in twisted carbon nanotubes
Steven W. D. Bailey, David Tomanek, Young-Kyun Kwon +1
Using the Landauer-Buttiker formalism, we calculate the effect of structural twist on electron transport in conducting carbon nanotubes. We demonstrate that even a localized region…