Critical behaviour near critical end points and tricritical points in disordered spin-1 ferromagnets

Soheli Mukherjee, Sumedha

Research output: Contribution to journalArticlepeer-review

Abstract

Critical end points and tricritical points are multicritical points that separate lines of continuous transitions from lines of first order transitions in the phase diagram of many systems. In models like the spin-1 disordered Blume–Capel model and the repulsive Blume–Emery–Griffiths model, the tricritical point splits into a critical end point and a bicritical end point with an increase in disorder and repulsive coupling strength respectively. In order to make a distinction between these two multicritical points, we investigate and contrast the behaviour of the first order phase boundary and the co-existence diameter around them.

Original languageEnglish
Article number128905
JournalPhysica A: Statistical Mechanics and its Applications
Volume624
DOIs
StatePublished - 15 Aug 2023

Keywords

  • Critical Phenomena
  • Disordered systems
  • Multicritical points
  • Phase transitions
  • Spin Models
  • Tricritical points

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability

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