title: Correlation between temperature variations of static and dynamic properties in glass-forming liquids.
abstract: Detailed analysis of the static structure factor S(Q) in several glass-forming liquids reveals that the temperature variations of the width of the main diffraction peak ΔQ(T) correlate with the fragility of these liquids. This observation suggests a direct connection between rather subtle structural changes and sharp slowing down of structural relaxation in glass-forming liquids. We show that this observation can be rationalized using the Adam-Gibbs approach, through a connection between temperature variations of structural correlation length, l_{c}∼2π/ΔQ, and the size of cooperatively rearranging regions.
authors.affiliation: Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, USA.
authors.forename: D N
authors.initials: DN
authors.lastname: Voylov
authors.affiliation: Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6272, USA.
authors.forename: P J
authors.initials: PJ
authors.lastname: Griffin
authors.affiliation: Chemistry Department, Yale University, New Haven, Connecticut 06511, USA.
authors.forename: B
authors.initials: B
authors.lastname: Mercado
authors.affiliation: Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: J K
authors.initials: JK
authors.lastname: Keum
authors.affiliation: Department of Electrical Engineering, Fukuoka Institute of Technology, Fukuoka 811-0295, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Nakanishi
authors.affiliation: Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, USA.
authors.forename: V N
authors.initials: VN
authors.lastname: Novikov
authors.affiliation: Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, USA.|Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: A P
authors.initials: AP
authors.lastname: Sokolov