Published August 1, 2000
| Version v1
Journal article
Evidence of a structural anomaly at 14 K in polymerised CsC60
- 1. Sussex Univ., Brighton (United Kingdom). School of Chemistry, Physics and Environmental Science
- 2. European Synchrotron Radiation Facility (ESRF), 38 - Grenoble (France)
Description
We report the results of a high-resolution synchrotron X-ray powder diffraction study of polymerised CsC60 in the temperature range 4 to 40 K. Its crystal structure is monoclinic (space group I2/m), isostructural with RbC60. Below 14 K, a spontaneous thermal contraction is observed along both the polymer chain axis, a and the interchain separation along [111], d1. This structural anomaly could trigger the occurrence of the spin-singlet ground state, observed by NMR at the same temperature. (orig.)
Additional details
Publishing Information
- Journal Title
- Europhysics Letters
- Journal Volume
- 51
- Journal Issue
- 3
- Journal Page Range
- p. 314-319
- ISSN
- 0295-5075
- CODEN
- EULEEJ
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 31045933
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CESIUM COMPOUNDS; CRYSTAL STRUCTURE; FULLERENES; LATTICE PARAMETERS; NUCLEAR MAGNETIC RESONANCE; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALI METAL COMPOUNDS; CARBON; COHERENT SCATTERING; DIFFRACTION; ELEMENTS; MAGNETIC RESONANCE; NONMETALS; RESONANCE; SCATTERING
Optional Information
- Notes
- 19 refs.