We present the results of an experimental study of patterned segregation in a horizontally shaken shallow layer of a binary mixture of dry particles. An order parameter for the segregated domains is defined and the effect of the variation of the combined filling fraction, , of the mixture on the observed pattern formation is systematically studied. We find that there is a critical event associated with the onset of segregation, at , which has the characteristics of a continuous phase transition, including critical slowing down.
- Received 16 July 2002
- Published 25 November 2002
© 2002 The American Physical Society