The Kondo effect in a one- and two-electron quantum dot
β Scribed by Satoshi Sasaki; Yoshitaka Kitamura; Wataru Izumida; Keiji Ono; Seigo Tarucha
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 186 KB
- Volume
- 12
- Category
- Article
- ISSN
- 1386-9477
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π SIMILAR VOLUMES
Adiabatic pumping through a quantum dot is investigated under the strong Coulomb interaction using the slave boson mean-field theory. The pumped current is driven by time-dependent gate voltages applied to the dot. We illustrate the pumped current peculiar to the Kondo effect.
Making use of the equation of motion method and Keldysh Green function technique, we obtain a general current formula for a quantum-dot-ring with one of the dots connected to two electron reservoirs under a DC bias voltage. The transmission probability TΓ°oΓ as a function of electron o curve is prese