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VOLUME 79, NUMBER 6 P H Y S I C A L R E V I E W L E T T E R S 11 AUGUST 1997 Interfaces of Modulated Phases
 

Summary: VOLUME 79, NUMBER 6 P H Y S I C A L R E V I E W L E T T E R S 11 AUGUST 1997
Interfaces of Modulated Phases
Roland R. Netz,1,2
David Andelman,3
and M. Schick1
1
Department of Physics, University of Washington, Box 351560, Seattle, Washington 98195-1560
2
Max-Planck-Institut für Kolloid- und Grenzflächenforschung, Kantstrasse 55, 14513 Teltow, Germany
3
School of Physics and Astronomy, Tel-Aviv University, Ramat Aviv 69978, Tel Aviv, Israel
(Received 22 November 1996)
Numerically minimizing a continuous free-energy functional which yields several modulated phases,
we obtain the order-parameter profiles and interfacial free energies of symmetric and nonsymmetric
tilt boundaries within the lamellar phase, and of interfaces between coexisting lamellar, hexagonal,
and disordered phases. Our findings agree well with chevron, omega, and T-junction tilt-boundary
morphologies observed in diblock copolymers and magnetic garnet films. [S0031-9007(97)03772-1]
PACS numbers: 61.25.Hq, 61.41.+e, 83.70.Hq
Modulated phases are found in a surprisingly diverse set
of physical and chemical systems, including superconduc-

  

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

 

Collections: Materials Science; Physics