Exact many-electron ground states on the diamond hubbard chain

Zsolt Gulácsi, Arno Kampf, Dieter Vollhardt

Research output: Contribution to journalArticle

53 Citations (Scopus)


Exact ground states of interacting electrons on the diamond Hubbard chain in a magnetic field are constructed which exhibit a wide range of properties such as flat-band ferromagnetism and correlation-induced metallic, half-metallic, or insulating behavior. The properties of these ground states can be tuned by changing the magnetic flux, local potentials, or electron density.

Original languageEnglish
Article number026404
JournalPhysical review letters
Issue number2
Publication statusPublished - Jul 13 2007

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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