Seminars & Lectures
| * TITLE | Kondo Effects on Quantum Dots Coupled to Ferromagnets and Superconductors | ||||||
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| * DATE / TIME | 2003-04-19, 11:00 am | ||||||
| * PLACE | APCTP Seoul Branch Office | ||||||
| * ABSTRACT | |||||||
| I will discuss the Kondo effects on quantum dots in two different cases, based on numerical renormalization group studies. In the first case, where a quantum dot is coupled to two ferromagnets, I clarify a recently raised issue, whether the Kondo resonance survives or not. I also report the tunneling magnetoresistance as a function of polarization and dot-electron energy level. In the second case, a quantum dot coupled to superconducting leads, I will discuss the Kondo-enhanced Josephson current and singlet-douplet transition. |
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