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30 papers · 1 filter
Shot noise and tunnel magnetoresistance in multilevel quantum dots: Effects of cotunneling
I. Weymann, J. Barnas
Spin-dependent transport through a multilevel quantum dot weakly coupled to ferromagnetic leads is analyzed theoretically by means of the real-time diagrammatic technique. Both the…
Microwave excitations associated with a wavy angular dependence of the spin transfer torque : model and experiments
O. Boulle, V. Cros, J. Grollier +6
The spin transfer torque (STT) can lead to steady precession of magnetization without any external applied field in magnetic spin valve where the magnetic layer have very different…
Dicke-like effect in spin-polarized transport through coupled quantum dots
Piotr Trocha, Józef Barnaś
Spin-dependent electronic transport through a quantum dot side-coupled to two quantum dots and attached to ferromagnetic leads with collinear (parallel and antiparallel) magnetizat…
The long-term stability of extrasolar system HD 37124. Numerical study of resonance effects
Krzysztof Gozdziewski, Slawomir Breiter, Wojciech Borczyk
We describe numerical tools for the stability analysis of extrasolar planetary systems. In particular, we consider the relative Poincare variables and symplectic integration of the…
Bio-linguistic transition and Baldwin effect in an evolutionary naming-game model
Adam Lipowski, Dorota Lipowska
We examine an evolutionary naming-game model where communicating agents are equipped with an evolutionarily selected learning ability. Such a coupling of biological and linguistic…
Theory of shot noise in single-walled metallic carbon nanotubes weakly coupled to nonmagnetic and ferromagnetic leads
I. Weymann, J. Barnas, S. Krompiewski
We present theoretical study of shot noise in single wall metallic carbon nanotubes weakly coupled to either nonmagnetic or ferromagnetic leads. Using the real-time diagrammatic te…