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Eur. Phys. J. B 4, 95101 (1998) THE EUROPEAN
 

Summary: Eur. Phys. J. B 4, 95101 (1998)
THE EUROPEAN
PHYSICAL JOURNAL B
c
EDP Sciences
Springer-Verlag 1998
The lamellar-disorder interface: one-dimensional modulated
profiles
S. Villain-Guillota
and D. Andelmanb
School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel-Aviv University,
Ramat-Aviv 69978, Tel-Aviv, Israel
Received: 28 March 1997 / Revised: 6 February 1998 / Accepted: 16 February 1998
Abstract. We study interfacial behavior of a lamellar (stripe) phase coexisting with a disordered phase.
Systematic analytical expansions are obtained for the interfacial profile in the vicinity of a tricritical point.
They are characterized by a wide interfacial region involving a large number of lamellae. Our analytical
results apply to systems with one dimensional symmetry in true thermodynamical equilibrium and are of
relevance to metastable interfaces between lamellar and disordered phases in two and three dimensions. In
addition, good agreement is found with numerical minimization schemes of the full free energy functional
having the same one dimensional symmetry. The interfacial energy for the lamellar to disordered transition

  

Source: Andelman, David - School of Physics and Astronomy, Tel Aviv University

 

Collections: Materials Science; Physics