Metastable Bi under Extreme Conditions Investigated by Combined XAS and XRD
- CNISM and dip. di Fisica, Universita di Camerino via Mad. delle Carceri 62032, Camerino (Italy)
- European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble (France)
We report the results of a detailed experimental study carried out at the European Synchrotron Radiation Facility (ESRF) providing an unprecedented insight into the metastable phase diagram of Bi. In particular we focus the attention on a novel metastable crystalline structure of Bi compatible with the {beta}-tin structure. It is reasonable to identify the new structure with the unknown stable Bi-II' structure. These findings have been achieved using the single energy x-ray absorption detection (SEXAD) technique and angular dispersive x-ray diffraction (ADXD) both combined with a ''Paris-Edinburgh'' V5 large volume press at the BM29 beamline. The results obtained show that the combination of SEXAD and ADXD is a unique and reliable tool for detecting subtle structural modifications in condensed matter.
- OSTI ID:
- 21054674
- Journal Information:
- AIP Conference Proceedings, Vol. 882, Issue 1; Conference: XAFS13: 13. international conference on X-ray absorption fine structure, Stanford, CA (United States), 9-14 Jul 2006; Other Information: DOI: 10.1063/1.2644583; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Toward comprehensive studies of liquids at high pressures and high temperatures: Combined structure, elastic wave velocity, and viscosity measurements in the Paris-Edinburgh cell
High efficiency multichannel collimator for structural studies of liquids and low-Z materials at high pressures and temperatures