True and quasi long-range order in the generalized q-state clock model
2009 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, ISSN 1063-651X, Vol. 80, 060101- p.Article in journal (Refereed) Published
From consideration of the order-parameter distribution,we propose an observable which makes a clear distinction betweentrue and quasi long-range orders in the two-dimensionalgeneralized $q$-state clock model.Measuring this quantity by Monte Carlo simulations for $q=8$, weconstruct a phase diagram and identify critical properties acrossthe phase-separation lines among the true long-range order, quasilong-range order, and disorder. Our result supports the theoreticalprediction that there appears a discontinuous order-disorder transition assoon as the two phase-separation lines merge.
Place, publisher, year, edition, pages
2009. Vol. 80, 060101- p.
clock model, long-range order
Condensed Matter Physics
Research subject Theoretical Physics
IdentifiersURN: urn:nbn:se:umu:diva-30936DOI: 10.1103/PhysRevE.80.060101OAI: oai:DiVA.org:umu-30936DiVA: diva2:288984