X-ray anomalous scattering investigations on the charge order in $α^\prime$-NaV$_2$O$_5$

S. Grenier; A. Toader; J. E. Lorenzo; Y. Joly; B. Grenier; S. Ravy; L. P. Regnault; H. Renevier; J. Y. Henry; J. Jegoudez; A. Revcolevschi

doi:10.1103/physrevb.65.180101

arXiv · cond-mat/0109091

X-ray anomalous scattering investigations on the charge order in $α^\prime$-NaV$_2$O$_5$

S. Grenier·A. Toader·J. E. Lorenzo·Y. Joly·B. Grenier·S. Ravy·L. P. Regnault·H. Renevier·J. Y. Henry·J. Jegoudez·A. Revcolevschi

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Abstract

Anomalous x-ray diffraction studies show that the charge ordering in $α^\prime$-NaV$_2$O$_5$ is of zig-zag type in all vanadium ladders. We have found that there are two models of the stacking of layers along \emph{c-}direction, each of them consisting of 2 degenerated patterns, and that the experimental data is well reproduced if the 2 patterns appears simultaneously. We believe that the low temperature structure contains stacking faults separating regions corresponding to the four possible patterns.

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S. Grenier, A. Toader, J. E. Lorenzo, Y. Joly, B. Grenier, S. Ravy, L. P. Regnault, H. Renevier, J. Y. Henry, J. Jegoudez, A. Revcolevschi. 2001-09-05. X-ray anomalous scattering investigations on the charge order in $α^\prime$-NaV$_2$O$_5$. https://doi.org/10.1103/physrevb.65.180101

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