UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

Ice XV: A New Thermodynamically Stable Phase of Ice

Salzmann, CG; Radaelli, PG; Mayer, E; Finney, JL; (2009) Ice XV: A New Thermodynamically Stable Phase of Ice. PHYS REV LETT , 103 (10) , Article 105701. 10.1103/PhysRevLett.103.105701. Green and gold open access

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
898Kb

Abstract

A new phase of ice, named ice XV, has been identified and its structure determined by neutron diffraction. Ice XV is the hydrogen-ordered counterpart of ice VI and is thermodynamically stable at temperatures below similar to 130 K in the 0.8 to 1.5 GPa pressure range. The regions of stability in the medium pressure range of the phase diagram have thus been finally mapped, with only hydrogen-ordered phases stable at 0 K. The ordered ice XV structure is antiferroelectric (P1), in clear disagreement with recent theoretical calculations predicting ferroelectric ordering (Cc).

Type:Article
Title:Ice XV: A New Thermodynamically Stable Phase of Ice
Open access status:An open access publication. A version is also available from UCL Discovery.
DOI:10.1103/PhysRevLett.103.105701
Publisher version:http://dx.doi.org/10.1103/PhysRevLett.103.105701
Language:English
Additional information:© 2009 The American Physical Society
Keywords:NEUTRON POWDER DIFFRACTION, LOW-TEMPERATURES, RAMAN-SPECTRA, VI, TRANSITION, PREDICTION
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry
UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Physics and Astronomy

View download statistics for this item

Archive Staff Only: edit this record