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Title: Metastable Bi under Extreme Conditions Investigated by Combined XAS and XRD

Abstract

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.

Authors:
; ;  [1]; ; ;  [2]
  1. CNISM and dip. di Fisica, Universita di Camerino via Mad. delle Carceri 62032, Camerino (Italy)
  2. European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble (France)
Publication Date:
OSTI Identifier:
21054674
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 882; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION SPECTRA; ABSORPTION SPECTROSCOPY; BISMUTH; CRYSTAL STRUCTURE; EUROPEAN SYNCHROTRON RADIATION FACILITY; METASTABLE STATES; PHASE DIAGRAMS; PHASE TRANSFORMATIONS; PRESSURE DEPENDENCE; X-RAY DIFFRACTION; X-RAY SPECTRA; X-RAY SPECTROSCOPY

Citation Formats

Principi, E., Minicucci, M., Di Cicco, A., Trapananti, A., De Panfilis, S., and Poloni, R.. Metastable Bi under Extreme Conditions Investigated by Combined XAS and XRD. United States: N. p., 2007. Web. doi:10.1063/1.2644583.
Principi, E., Minicucci, M., Di Cicco, A., Trapananti, A., De Panfilis, S., & Poloni, R.. Metastable Bi under Extreme Conditions Investigated by Combined XAS and XRD. United States. doi:10.1063/1.2644583.
Principi, E., Minicucci, M., Di Cicco, A., Trapananti, A., De Panfilis, S., and Poloni, R.. Fri . "Metastable Bi under Extreme Conditions Investigated by Combined XAS and XRD". United States. doi:10.1063/1.2644583.
@article{osti_21054674,
title = {Metastable Bi under Extreme Conditions Investigated by Combined XAS and XRD},
author = {Principi, E. and Minicucci, M. and Di Cicco, A. and Trapananti, A. and De Panfilis, S. and Poloni, R.},
abstractNote = {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.},
doi = {10.1063/1.2644583},
journal = {AIP Conference Proceedings},
number = 1,
volume = 882,
place = {United States},
year = {Fri Feb 02 00:00:00 EST 2007},
month = {Fri Feb 02 00:00:00 EST 2007}
}
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