Local Moment Formation in Quantum Point Contacts

Kenji Hirose, Yigal Meir, Ned S. Wingreen

Research output: Contribution to journalArticlepeer-review

118 Scopus citations

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 languageEnglish
Article number026804
Number of pages4
JournalPhysical Review Letters
Volume90
Issue number2
DOIs
StatePublished - 17 Jan 2003

ASJC Scopus subject areas

  • Physics and Astronomy (all)

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