J. Phys. I France
Volume 6, Numéro 2, February 1996
Page(s) 265 - 275
DOI: 10.1051/jp1:1996147
J. Phys. I France 6 (1996) 265-275

The Temperature Dependent Shear-Strain of the (NbSe $\bf _4$) $\bf _{10}$I $\bf _3$ Compound, a Quasi-One-Dimensional Charge Density Wave System, below the Peierls Transition

Z. Vucic1, J. Gladic2, C. Haas1 and J.L. De Boer1

1  University of Groningen, Laboratory of Chemical Physics, Materials Science Center, Nijenborgh 4, 9747 AG Groningen, The Netherlands
2  Institute of Physics of the University of Zagreb, Bijenicka cesta 46, P.O.B. 304, 10000 Zagreb, Croatia

(Received 19 July 1995, received in final form 24 October 1995, accepted 3 November 1995)

An X-ray study of the quasi-one-dimensional charge density wave (CDW) system (NbS 4) 10I 3 as a function of temperature from room temperature down to 130 K has been performed by taking oscillation and zeroth level Weissenberg photographs. A reversible transformation of the room temperature tetragonal lattice into four symmetrically-related monoclinic domains has been observed at the Peierls transition temperature, $T_{\rm P}\approx 285$ K, with a continuous change of the monoclinic angle from 90° to 92.1° at 130 K. The monoclinic deformation of the tetragonal lattice, i.e. the shear-strain along the chain axis seems to be an elastic response to the long wavelength transverse modulation of the 3D-CDW order which can be qualitatively explained by taking into account the Coulomb interaction between CDWs on neighbouring chains up to the next-nearest-neighbours.

© Les Editions de Physique 1996

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.