Theory of transport through quantum-dot spin valves in the weak-coupling regime
By M. Braun, J. Konig, J. Martinek. 2004
145 citations recorded by the source corpus.
We develop a theory of electron transport through quantum dots that are weakly coupled to ferromagnetic leads. The theory covers both the linear and nonlinear transport regime, takes non-collinear magnetization of the leads into account, and allows for an externally-applied magnetic field. We derive generalized rate equations for the dot's occupation and accumulated spin and discuss the influence of the dot's spin on the transmission. A negative differential conductance and a nontrivial dependence of the conductance on the angle between the lead magnetizations is predicted.
Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/f17ba14c7d2f2a927c6814bfd4a4f2c1cba8c413
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Citations in the corpus
- Electric field control of spin transport (2005, background): “In addition, the energy levels E n of the carbon-nanotube quantum dot acquire a spin-dependent part caused by phases of the reflection amplitudes at the boundaries between the quantum dot and the ferromagnetic electrodes, which are spin dependen”