Phase separation in a weak first-order phase transition

OLĞAR H., Celik T., Berg B., Meyer-Ortmanns H.

PHYSICA A, cilt.274, sa.1-2, ss.320-324, 1999 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 274 Sayı: 1-2
  • Basım Tarihi: 1999
  • Doi Numarası: 10.1016/s0378-4371(99)00306-4
  • Dergi Adı: PHYSICA A
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.320-324
  • Ankara Üniversitesi Adresli: Hayır

Özet

Recent results on the phase transition in scalar field theory indicate that the strength of the transition is not a minor quantitative detail of the transition, but of considerable impact concerning the phase conversion mechanism. To see which phase conversion mechanism takes place depending on the strength of transition, we have simulated the q = 5 state Potts model in two dimensions under an external magnetic field. Our results indicate that the phase conversion mechanism changes from nucleation-to-spinodal decomposition as the strength of the transition is weakened by increasing the external field. (C) 1999 Elsevier Science B.V. All rights reserved.