Volume 93, Number 1, January 2011
|Number of page(s)||5|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||01 February 2011|
Temperature-pressure phase diagram of an aperiodic host guest compound
Institut de Physique de Rennes, UMR UR1-CNRS 6251, Université de Rennes 1 - 35042 Rennes Cedex, France, EU
2 Institut des Sciences Moléculaires, UMR 5255 CNRS, Université de Bordeaux - 33405 Talence Cedex, France, EU
3 Institut Laue Langevin - BP 156, 38042 Grenoble Cedex 9, France, EU
4 Laboratoire Léon Brillouin, CEA-CNRS, CE Saclay - 91191 Gif-sur-Yvette, France, EU
5 Faculdad de Ciencias, Universidad del Pais Vasco - Apdo 644, Bilbao, Spain, EU
6 Institute for Theoretical Physics, University of Nijmegen - Nijmegen, The Netherlands, EU
Accepted: 22 December 2010
This letter reports on the structural instabilities of an aperiodic composite crystal under pressure. The (P, T) phase diagram up to 0.55 GPa of nonadecane-urea is reported showing various symmetry breakings in crystallographic superspaces, towards three different orthorhombic phases. These structural phase transitions are characterized by a change in the intermodulation and are described by increasing the rank of the crystallographic superspaces.
PACS: 61.50.Ks – Crystallographic aspects of phase transformations; pressure effects / 61.44.Fw – Incommensurate crystals / 61.05.F- – Neutron diffraction and scattering
© EPLA, 2011
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.