Abstract
Spin-density-functional theory of quantum point contacts (QPCs) reveals the formation of a local moment with a net of one electron spin in the vicinity of the point contact—supporting the recent report of a Kondo effect in a QPC. The hybridization of the local moment to the leads decreases as the QPC becomes longer, while the on site Coulomb-interaction energy remains almost constant.
Original language | English (US) |
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Pages (from-to) | 4 |
Number of pages | 1 |
Journal | Physical review letters |
Volume | 90 |
Issue number | 2 |
DOIs | |
State | Published - 2003 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)