Nano Science and Technology Institute
Nanotech 2001 Vol. 1
Nanotech 2001 Vol. 1
Technical Proceedings of the 2001 International Conference on Modeling and Simulation of Microsystems
Chapter 11: Quantum Effects, Quantum Devices and Spintronics

The Quantum-Point-Contact Spin Filter

Authors:M.J. Gilbert and J.P. Bird
Affilation:Arizona State University, US
Pages:570 - 573
Keywords:spin filter, spin devices, split-gate technique, quantum point contact
Abstract:We describe an electron filter that exploits the known transmission properties of quantum point contacts to allow local and tunable control of the spin polarization in a semiconductor. When properly configured, the conductance of this device gives a direct measure of the spin polarization of the carriers transmitted through it. These predictions are confirmed by numerical simulations, performed for a spin filter with realistic device parameters.
The Quantum-Point-Contact Spin FilterView PDF of paper
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