title: Second-order phase transitions in amorphous gallium clusters.
abstract: Ion mobility and calorimetry measurements have been used to probe the nature of the phase transitions in gallium clusters with 29-55 atoms. While most clusters appear to undergo a first-order transition between solidlike and liquidlike phases, a few show the signature of melting without a significant latent heat. These transitions appear to be the finite size analogue of a second-order phase transition, and they presumably occur for some cluster sizes because their solidlike phase is amorphous.
authors.affiliation: Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47404, USA.
authors.forename: Gary A
authors.initials: GA
authors.lastname: Breaux
authors.forename: Baopeng
authors.initials: B
authors.lastname: Cao
authors.forename: Martin F
authors.initials: MF
authors.lastname: Jarrold