Local moment formation in quantum point contacts

Kenji Hirose, Yigal Meir, Ned S. Wingreen

Research output: Contribution to journalArticle

117 Scopus citations

Abstract

The electronic states of quantum point contacts were studied using the spin-density-functional method. It was found that a local moment with a spin of 1/2 is formed in the vicinity of the QPC barrier. For the local moment, estimates were obtained for both the on site Coulomb-interaction energy and the hybridization to the leads.

Original languageEnglish (US)
Pages (from-to)026804/1-026804/4
JournalPhysical review letters
Volume90
Issue number2
StatePublished - Jan 17 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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