Superionic behaviour in copper(I) chloride at high pressures and high temperatures
- 19 August 1996
- journal article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 8 (34) , 6191-6198
- https://doi.org/10.1088/0953-8984/8/34/009
Abstract
Neutron powder diffraction studies of copper(I) chloride have been performed at pressures to 7.3 kbar and temperatures to 740 K. The presence of a solid phase at pressures greater than kbar and temperatures greater than , identified in previous differential thermal analysis studies, is confirmed. This phase, labelled CuCl-III, has a cubic structure, space group . The chlorine anions form a body-centred cubic sublattice and the copper cations are randomly distributed over the 12(d) tetrahedral sites at etc. Both the basic structure and the nature of the thermally induced disorder appear similar to those shown by the ambient pressure superionic phases and . As a result, CuCl can no longer be considered an anomalous (non-superionic) member of the family of binary, tetrahedrally coordinated halide compounds.Keywords
This publication has 12 references indexed in Scilit:
- Structural disorder in CuBrPhysica B: Condensed Matter, 1994
- Determination of the structure of beta -CuI by high-resolution neutron powder diffractionJournal of Physics: Condensed Matter, 1994
- Structure and fast-ion conduction in α-AgISolid State Ionics, 1993
- The Polaris powder diffractometer at ISISPhysica B: Condensed Matter, 1992
- Neutron poweder diffraction investigation of γ-and β-copper chloride in the temperature range 8–686 KSolid State Ionics, 1988
- Extended-x-ray-absorption-fine-structure investigation of mobile-ion density in superionic AgI, CuI, CuBr, and CuClPhysical Review B, 1981
- Behavior of the AB-type compounds at high pressures and high temperaturesJournal of Physical and Chemical Reference Data, 1977
- The structure of superionic compounds by powder neutron diffraction. I. Cation distribution in α-AgIJournal of Physics C: Solid State Physics, 1977
- Crystal structure of high-temperature cuprous iodide and cuprous bromideElectrochimica Acta, 1977
- Phase Diagrams of the Cuprous Halides to High PressuresPhysical Review B, 1968