We study the noise properties of a double quantum dot driven by an AC electric field that pumps electrons between two unbiased leads. In the presence of a static magnetic field, it is possible to tune the gate voltage such that the resulting current consists mainly of spin-polarized electrons. We fi
Shot noise in spin-polarized currents
β Scribed by F.G Brito; J.F Estanislau; J.C Egues
- Book ID
- 114224166
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 116 KB
- Volume
- 226-230
- Category
- Article
- ISSN
- 0304-8853
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
We present a semi-implicit numerical method for micromagnetics simulations, in the presence of spin-currents. The dynamics of the magnetization are described by the Landau-Lifshitz-Gilbert equation, while the dynamics of the spin are described by a diffusion equation with discontinuous coefficients.
We report the observation of enhanced spin-dependent shot noise in magnetic tunnel barriers, suggesting transport through localized states within the barrier. This is supported by the existence of negative magnetoresistance and structure in the differential conductance curves. A simple model of tunn