|Title||Local moment formation in quantum point contacts.|
|Publication Type||Journal Article|
|Year of Publication||2003|
|Authors||Hirose, K, Meir, Y, Wingreen, NS|
|Journal||Phys Rev Lett|
|Date Published||2003 Jan 17|
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.
|Alternate Journal||Phys. Rev. Lett.|