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Orthorhombic versus monoclinic symmetry of the charge-ordered state of NaV2O5

Sander van Smaalen, Peter Daniels, Lukas Palatinus, and Reinhard K. Kremer
Phys. Rev. B 65, 060101(R) – Published 15 January 2002
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Abstract

High-resolution x-ray diffraction data show that the low-temperature superstructure of αNaV2O5 has an F-centered orthorhombic 2a×2b×4c superlattice. A structure model is proposed, that is characterized by layers with zigzag charge order on all ladders and stacking disorder, such that the averaged structure has space group Fmm2. This model is in accordance with both x-ray scattering and NMR data. Variations in the stacking order and disorder offer an explanation for the recently observed devil’s staircase of the superlattice period along c.

  • Received 3 August 2001

DOI:https://doi.org/10.1103/PhysRevB.65.060101

©2002 American Physical Society

Authors & Affiliations

Sander van Smaalen*, Peter Daniels, and Lukas Palatinus

  • Laboratory for Crystallography, University of Bayreuth, D-95440 Bayreuth, Germany

Reinhard K. Kremer

  • Max Planck Institute for Solid State Research, Heisenbergstrasse 1, D-70569 Stuttgart, Germany

  • *Email address: smash@uni-bayreuth.de

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Issue

Vol. 65, Iss. 6 — 1 February 2002

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