Condensation phase transitions in ferrofluids
Physica A, (2004)Abstract
We present the results of theoretical study of a new scenario of condensation
phase transitions in ensemble of particles in ferrofluids. in this
scenario the phase transition begins with the formation of linear
chainlike clusters which collapse into dense globules when a number
of particles in the chain exceeds a certain magnitude n(c). These
globules serve as nuclei of a new dense phase. Final (equilibrium)
stage of the phase transition is also considered. Our estimates show
that for actual parameters of ferrofluid without magnetic field n(c)
is about 50-90. Calculated magnetic volume concentration of particles
in dense phase after separation is about 0.2; initial susceptibility
of the dense phase is 70-140.
