Fig1   Schematic representation of the experiment
Fig2   The meniscus formed around the needle
Fig3   Heating wire is used to generate a dislocation loop
Fig3   The growth of dislocation loop of size 30A is observed in visible light
  • J-C. Geminard,  R. Holyst   and   P. Oswald   Phys.Rev.Lett  78,1924, (1997)
  • A.Poniewierski, R.Holyst and P.Oswald    "Contact angle between smectic film and its meniscus",   Langmuir 18, 1511, (2002)
  • P.Oswald, P.Pieranski, F.Picano and R.Holyst    "When boundaries dominate: dislocation dynamics in smectic films",   Phys.Rev.Lett. 88, 015503-1, (2002)
  • F.Picano,R.Holyst and P.Oswald    "Coupling between meniscus and smectic A films: circular and catenoid profiles, induced stress and dislocation dynamics",   Phys.Rev. E 62, 3747-3758, (2000).
  • S.Pankratz, PM Johnson, R.Holyst and CC Huang,    "Thinning transition in free standing liquid crystal films as the successive formation of dislocation loops",   Phys.Rev. E 60, R2456-2459, (1999).
  • R.Holyst, A.Poniewierski, P.Fortmeier and H.Stegemeyer    "Coupling of polarization and dislocation in ferroelectric smectic liquid crystal films",   Phys.Rev.Lett 81 , 5848-5851, (1998).
  • R.Holyst    "Dislocations in lamellar and liquid crystal films: equilibrium location, edge profiles and phase transitions",   Phys.Rev.Lett. 72, 4097, (1994)
  • R.Holyst    "Dislocation loops in finite systems",   Phys.Rev.B 50 , 12398, (1994).