title: Complex structural rearrangements in As-Se glasses.
abstract: Structural relaxation of As-Se glasses through the glass-to-supercooled liquid transition interval is studied with temperature-modulated differential scanning calorimetry. It is shown that connectivity of glass network and long-term physical ageing change not only the full width at half maximum of the out-of-phase component of complex heat capacity, which is conventionally used for analysis, but also its asymmetry value. The latter is shown to carry very important information on the dynamic heterogeneity in glasses. Raman spectroscopy is used as complementary technique to reveal possible structural rearrangements in the investigated glass network.
authors: Department of Physics and Astronomy, Austin Peay State University, Clarksville, Tennessee 37044, USA.
authors: R
authors: R
authors: Golovchak
authors: Department of Physics and Astronomy, Austin Peay State University, Clarksville, Tennessee 37044, USA.
authors: J
authors: J
authors: Oelgoetz
authors: Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, 532 10 Pardubice, Czech Republic.
authors: M
authors: M
authors: Vlcek
authors: AMME-LECAP International Laboratory, EA4528, Institut des Matériaux de Rouen, Université de Rouen, Faculté des Sciences, Avenue de l'Université BP 12, 76801 Saint Etienne du Rouvray, France.
authors: A
authors: A
authors: Esposito
authors: AMME-LECAP International Laboratory, EA4528, Institut des Matériaux de Rouen, Université de Rouen, Faculté des Sciences, Avenue de l'Université BP 12, 76801 Saint Etienne du Rouvray, France.
authors: A
authors: A
authors: Saiter
authors: AMME-LECAP International Laboratory, EA4528, Institut des Matériaux de Rouen, Université de Rouen, Faculté des Sciences, Avenue de l'Université BP 12, 76801 Saint Etienne du Rouvray, France.
authors: J-M
authors: JM
authors: Saiter
authors: Department of Materials Science and Engineering, Lehigh University, 5 East Packer Avenue, Bethlehem, Pennsylvania 18015-3195, USA.
authors: H
authors: H
authors: Jain