XY-to-Gaussian crossover for the Potts-model transition near the bicritical point of stressed SrTiO3

Daniel Blankschtein, Amnon Aharony

Research output: Contribution to journalReview articlepeer-review

Abstract

The trigonal-to-pseudotetragonal structural first-order transition in [111]-stressed SrTiO3, realizing the three-state Potts model, is studied in the close vicinity of the bicritical point (BCP). The exponents describing the effects of fluctuations on this transition are shown to cross over from XY- to Gaussian-model values as the BCP is approached. The first-order line is shown to approach the BCP tangentially to the temperature axis.

Original languageEnglish
Pages (from-to)5549-5552
Number of pages4
JournalPhysical Review B-Condensed Matter
Volume22
Issue number11
DOIs
StatePublished - 1980

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