Dynamic Interference Patterns From Ferrofluids
Abbreviated Journal Title
Mod. Phys. Lett. B
Physics, Applied; Physics, Condensed Matter; Physics, Mathematical
Time-dependent interference was observed above a critical magnetic field H-c1 in ferrofluids by a novel technique - magnetic thermal lens effect. The onset of the dynamics is associated with the formation of linear structures in the system. When a second critical field, H-c2, was reached, a lattice of quasi-periodic columns was observed by optical microscopy and random rotating patterns were replaced by stable rings, indicating ordering in the system. This technique provides a useful way to detect microstructures that are much smaller than the optical wave length thus unobservable by conventional optical technique. We found that the result crucially depends on boundary conditions.
Modern Physics Letters B
"Dynamic Interference Patterns From Ferrofluids" (1995). Faculty Bibliography 1990s. 1326.