Search for a structural response to the intermediate phase in Ge{sub x}Se{sub 1-x} glasses
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)
- Department of ECECS, University of Cincinnati, Ohio 45221 (United States)
- Department of Physics, Arizona State University, Tempe, Arizona 85287 (United States)
Atomic pair distribution functions (PDFs) obtained from high energy x-ray synchrotron radiation and x-ray absorption fine structure measurements were performed on 18 closely spaced compositions of chalcogenide glasses (Ge{sub x}Se{sub 1-x} with 0.15{<=}x{<=}0.40), which span the range of the floppy to rigid phase transition in these glasses. Structural parameters such as PDF peak widths, Debye-Waller factors from extended x-ray absorption fine structure, and the first sharp diffraction peak in S(Q) were extracted as a function of composition. These parameters smoothly evolve with composition, but there are no clear discontinuities or breaks in the slope associated with the appearance of the intermediate phase (IP). Therefore, these measurements do not confirm a structural origin for the IP.
- OSTI ID:
- 21143127
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 9 Vol. 77; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
ABSORPTION SPECTROSCOPY
CHALCOGENIDES
DEBYE-WALLER FACTOR
DIFFRACTION
DISTRIBUTION FUNCTIONS
FINE STRUCTURE
GERMANIUM COMPOUNDS
GLASS
PHASE TRANSFORMATIONS
SELENIUM COMPOUNDS
SYNCHROTRON RADIATION
X RADIATION
X-RAY SPECTROSCOPY
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
ABSORPTION SPECTROSCOPY
CHALCOGENIDES
DEBYE-WALLER FACTOR
DIFFRACTION
DISTRIBUTION FUNCTIONS
FINE STRUCTURE
GERMANIUM COMPOUNDS
GLASS
PHASE TRANSFORMATIONS
SELENIUM COMPOUNDS
SYNCHROTRON RADIATION
X RADIATION
X-RAY SPECTROSCOPY