Phase diagram of the frustrated coupled ladder system

B. Normand, K. Penc

Research output: Contribution to journalArticle

24 Citations (Scopus)


We present a theoretical study of the magnetic phase diagram of the frustrated coupled ladder structure realized recently in several materials. This system displays a nondegenerate spin-gap state in the dimer limit and an infinitely degenerate spin-gap state in the regime of weakly coupled zigzag chains. Between these we demonstrate the existence of gapless, magnetically ordered regions whose order is antiferromagnetic close to the honeycomb lattice limit, and incommensurate along the chains when all three magnetic interactions compete.

Original languageEnglish
Pages (from-to)R5736-R5739
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number10
Publication statusPublished - Jan 1 1997

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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