Quantum Dot as Spin Filter and Spin Memory
Top Cited Papers
- 28 August 2000
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 85 (9) , 1962-1965
- https://doi.org/10.1103/physrevlett.85.1962
Abstract
We consider a quantum dot in the Coulomb blockade regime weakly coupled to current leads and show that in the presence of a magnetic field it acts as an efficient spin filter (at the single-spin level), producing a spin-polarized current. Conversely, if the leads are fully spin polarized the up or the down state of the spin on the dot results in a large sequential or a small cotunneling current, and, thus, together with ESR techniques, the setup can be operated as a single-spin memory. DOI: http://dx.doi.org/10.1103/PhysRevLett.85.1962 © 2000 The American Physical SocietyKeywords
All Related Versions
This publication has 17 references indexed in Scilit:
- Electrical spin injection in a ferromagnetic semiconductor heterostructureNature, 1999
- Injection and detection of a spin-polarized current in a light-emitting diodeNature, 1999
- Electron Spin and Optical Coherence in SemiconductorsPhysics Today, 1999
- Spin injection and the local Hall effect in InAs quantum wellsJournal of Magnetism and Magnetic Materials, 1999
- Lateral drag of spin coherence in gallium arsenideNature, 1999
- MagnetoelectronicsScience, 1998
- Making Nonmagnetic Semiconductors FerromagneticScience, 1998
- Resonant Spin Amplification in-Type GaAsPhysical Review Letters, 1998
- Quantum computation with quantum dotsPhysical Review A, 1998
- Spin-Polarized TransportPhysics Today, 1995