The crystal structure and magnetic properties of CuGeO3

Green, M.A., Kurmoo, M., Stalick, J.K., Day, P. (1994) The crystal structure and magnetic properties of CuGeO3. Journal of the Chemical Society, Chemical Communications, (17). pp. 1995-1996. ISSN 00224936 (ISSN). (doi:10.1039/C39940001995) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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https://doi.org/10.1039/C39940001995

Abstract

The crystal structure of CuGeO3, which has been reported to undergo a spin-Peierls transition at 14 K, is determined by neutron powder diffraction at 300, 20 and 4.2 K and the structure refined in the space group Pmma at all three temperatures, ie without displacement of the Cu atoms from a uniform one-dimensional chain; anisotropic broadening of (h0l) reflections, observed in all three data sets, is successfully modelled by an orthorhombic micro-strain along a and c, i.e. perpendicular to Cu-Cu chains. Below 10 K the magnetic susceptibility fits very well to the Bulaevskii model, indicating a ratio of 0.69 between the Cu-Cu exchange constants in the dimerised chain and a mean exchange constant of 88 K.

Item Type: Article
DOI/Identification number: 10.1039/C39940001995
Additional information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] AD - Royal Institution, 21 Albemarle Street, London, W1X 4BS, United Kingdom [Field not mapped to EPrints] AD - National Institute of Standards and Technology, Gaithersburg, MD, United States [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Subjects: Q Science > QC Physics > QC173.45 Condensed Matter
Q Science > QD Chemistry > QD478 Solid State Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Giles Tarver
Date Deposited: 21 Oct 2015 11:39 UTC
Last Modified: 29 May 2019 16:11 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/51171 (The current URI for this page, for reference purposes)
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