This response on a Comment on Reference 2 discusses the space group Fmm2 determination of the low temperature structure of NaV2O5. We show that while conventional crystallography is consistent with 'zig-zag' charge ordering of half of the ladders, recent spectroscopic measurements suggest that the symmetry is lower than Fmm2. We suggest space group C2, consistent with full 'zig-zag' charge ordering of all the ladders.
Cite
@article{arxiv.cond-mat/0008054,
title = {Response: Spin-Singlet clusters in the ladder compound NaV2O5},
author = {J. L. de Boer and G. Maris and A. Meetsma and J. Baas and T. T. M. Palstra},
journal= {arXiv preprint arXiv:cond-mat/0008054},
year = {2009}
}