A manifestation of the frustration effect in S=1/2 quantum spin systems

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15 Citations (Scopus)

Abstract

The ground state properties of S=1/2 anisotropic Heisenberg magnets with plaquette frustration are investigated. The models can be classified according to whether a straightforward generalisation of the Marshall ansatz (1955) can be applied, or whether the ground state has to be approximated by a linear combination of Ising ground states. In the former case, the quantum ground state may have a zero-point entropy. In the latter case, a unique ground state with quantum liquid-like coherence properties is postulated, generalising an earlier suggestion by Fazekas and Anderson (1974).

Original languageEnglish
Article number001
JournalJournal of Physics C: Solid State Physics
Volume13
Issue number10
DOIs
Publication statusPublished - 1980

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frustration
Ground state
ground state
suggestion
Magnets
Entropy
magnets
entropy
Liquids
liquids

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

A manifestation of the frustration effect in S=1/2 quantum spin systems. / Fazekas, P.

In: Journal of Physics C: Solid State Physics, Vol. 13, No. 10, 001, 1980.

Research output: Contribution to journalArticle

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