Spin-Peierls transitions in S>1/2 Heisenberg chains

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46 Scopus citations

Abstract

Exact diagonalizations are done to calculate the energy gain from bond alternation in finite spin chains as a function of chain length. Calculations are done for S=1/2, 1, 3/2, and 2. Qualitative differences are found between half-integer and interger spins. Our results (i) indicate the absence of the spin-Peierls transition in systems with integer spins and (ii) suggest a transition in systems with half-integer spins.

Original languageEnglish (US)
Pages (from-to)9592-9595
Number of pages4
JournalPhysical Review B
Volume41
Issue number13
DOIs
StatePublished - Jan 1 1990

ASJC Scopus subject areas

  • Condensed Matter Physics

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