In Search of Energy Landscape for Network Glasses

Journal Article · Sat Dec 31 00:00:00 EST 2011 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3583531· OSTI ID:1041797

Golovchak, R; Kovalskiy, A; Shpotyuk, O; Jain, H

Quick scanning extended x-ray absorption fine-structure spectroscopy is used to obtain in situ structural information on the real-time response of network glasses at the nanoscale level of atomic organization to the temperature ramp through the glass transition range. The results testify nonlinear, real-time temperature response indicative of nanoscale dynamic heterogeneity in disordered systems with intermediate fragility, related to the intermetabasin transitions within potential energy/enthalpy landscape.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE SC OFFICE OF SCIENCE (SC)
• DOE Contract Number: DE-AC02-98CH10886
• OSTI ID: 1041797
• Report Number(s): BNL-97475-2012-JA; APPLAB; TRN: US201212%%209
• Journal Information: Applied Physics Letters, Vol. 98, Issue 17; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTROSCOPY
ARSENIC COMPOUNDS
DYNAMICS
ENTHALPY
FINE STRUCTURE
FREE ENERGY
METALLIC GLASSES
LEVELS
POTENTIAL ENERGY