Abstract
Single-crystal diffraction techniques offer significant advantages over powder diffraction methods, but until recently high-resolution neutron single-crystal studies at high pressure have been restricted to pressures below 2GPa. We present technical developments which now allow accurate single-crystal studies up to 10GPa and at temperatures down to 10K using time-of-flight Laue diffraction and the Paris-Edinburgh press. Prospects for work above 10GPa are discussed, and some data from a successful test at 12GPa are shown.
| Original language | English |
|---|---|
| Pages (from-to) | 780-791 |
| Number of pages | 12 |
| Journal | High Pressure Research |
| Volume | 29 |
| Issue number | 4 |
| DOIs | |
| State | Published - Dec 2009 |
| Externally published | Yes |
Funding
We would like to acknowledge helpful discussions of the techniques with Stefan Klotz, technical assistance from Duncan Francis with the experiments, and the work of Ian Bailey, Rob Done, Mike Dudman and Richard Down in the design and assembly of the cryostat. The work was supported by the Engineering and Physical Science Research Council, the Japan Society for the Promotion of Science through a fellowship to KK and resources made available by the Science and Technology Facilities Council.
Keywords
- Hydrogen-bonded ferroelectrics
- Large volume press
- Neutron diffraction
- Single crystals