Parity-locking effect in a strongly-correlated ring

C. A. Stafford, D. F. Wang

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Orbital magnetism in an integrable model of a multichannel ring with long-ranged electron-electron interactions is investigated. In a noninteracting multichannel system, the response to an external magnetic flux is the sum of many diamagnetic and paramagnetic contributions, but we find that for sufficiently strong correlations, the contributions of all channels add constructively, leading to a parity (diamagnetic or paramagnetic) which depends only on the total number of electrons. Numerical results confirm that this parity-locking effect is robust with respect to subband mixing due to disorder.

Original languageEnglish (US)
Pages (from-to)323-325
Number of pages3
JournalZeitschrift fur Physik B-Condensed Matter
Volume103
Issue number2
DOIs
StatePublished - Jun 1996
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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