Local Moment Formation in Quantum Point Contacts

Kenji Hirose, Yigal Meir, Ned S. Wingreen

Research output: Contribution to journalArticle

9 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 (US)
Number of pages1
JournalPhysical review letters
Volume90
Issue number2
DOIs
StatePublished - Jan 1 2003

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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