A measurement of the structure of the superionic conductor copper(I) bromide in its liquid phase by neutron diffraction
D A Allen; R A Howe; D A Allen; Dept. of Phys. & Astron., Leicester Univ., UK; R A Howe; Dept. of Phys. & Astron., Leicester Univ., UK
Журнал:
Journal of Physics: Condensed Matter
Дата:
1992-07-13
Аннотация:
The scattering of thermal neutrons from samples of molten CuBr has been measured on the D4B liquids diffractometer at the Institut Laue-Langevin, Grenoble. The three partial structure factors and pair distribution functions for this liquid have been determined by isotopic substitution of copper. The investigation reveals a featureless cation-cation partial structure factor and distribution function, and a considerable degree of first-shell penetration by the copper ions. Similarities of the cation-cation structure to that previously found for CuCl, and evidence of an even greater cation mobility, are consistent with a reduced charge transfer model for these liquids which melt from a superionic phase.
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