Intermediate- and short-range order in phosphorus-selenium glasses

Journal Article · Fri Apr 01 00:00:00 EDT 2011 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.83.144201· OSTI ID:21538277

Bytchkov, Aleksei; Hennet, Louis; Price, David L ^[1]; Miloshova, Mariana; Bychkov, Eugene ^[2]; Kohara, Shinji ^[3]

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1. Conditions Extremes et Materiaux: Haute Temperature et Irradiation and Universite d'Orleans, 1d Avenue de la Recherche Scientifique, F-45071 Orleans Cedex 2 (France)
2. Universite du Littoral, F-59140 Dunkerque (France)
3. Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198 (Japan)

State-of-the-art neutron and x-ray diffraction measurements have been performed to provide a definitive picture of the intermediate- and short-range structures of P{sub x}Se{sub 1-x} glasses spanning two glass regions, x 0.025-0.54 and 0.64-0.84. Liquid P{sub 4}Se{sub 3} and amorphous red P and Se were also measured. Detailed information was obtained about the development with increasing phosphorous concentration of intermediate-range order on the length scale {approx}6 A ring , based on the behavior of the first sharp diffraction peak. Attention is also paid to the feature in the structure factor at 7.5 A ring {sup -1}, identified in earlier numerical simulations, provides further evidence of the existence of molecular units. The real-space transforms yield a reliable statistical picture of the changing short-range order as x increases, using the information about types and concentrations of local structural units provided by previous NMR measurements to interpret the trends observed.

• OSTI ID: 21538277
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 83, Issue 14; Other Information: DOI: 10.1103/PhysRevB.83.144201; (c) 2011 American Institute of Physics; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMPUTERIZED SIMULATION
GLASS
LIQUIDS
NEUTRONS
NUCLEAR MAGNETIC RESONANCE
PEAKS
PHOSPHORUS COMPOUNDS
RINGS
SELENIUM COMPOUNDS
STRUCTURE FACTORS
X-RAY DIFFRACTION
BARYONS
COHERENT SCATTERING
DIFFRACTION
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
FERMIONS
FLUIDS
HADRONS
MAGNETIC RESONANCE
NUCLEONS
RESONANCE
SCATTERING
SIMULATION