X-ray anomalous scattering investigations on the charge order in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>α</mi></mrow><mrow><mo>′</mo></mrow></msup></mrow><mo>−</mo><mrow><msub><mrow><mi mathvariant="normal">NaV</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow><mrow><msub><mrow><mi mathvariant="normal">O</mi></mrow><mrow><mn>5</mn></mrow></msub></mrow></math></span>

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

Rapid Communication

X-ray anomalous scattering investigations on the charge order in $α^{'} - {NaV}_{2} O_{5}$

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

Phys. Rev. B 65, 180101(R) – Published 24 April 2002

Abstract

Anomalous x-ray-diffraction studies show that the charge ordering in $α^{'} - {NaV}_{2} O_{5}$ is of zigzag type in all vanadium ladders. We have found that there are two models of the stacking of layers along the c direction, each consisting of two degenerated patterns, and that the experimental data are well reproduced if the two patterns appear simultaneously. We believe that the low-temperature structure contains stacking faults separating regions corresponding to the four possible patterns.

Received 1 March 2002

DOI:https://doi.org/10.1103/PhysRevB.65.180101

Authors & Affiliations

S. Grenier¹, A. Toader^1,*, J. E. Lorenzo^1,2, Y. Joly¹, B. Grenier³, S. Ravy⁴, L. P. Regnault³, H. Renevier¹, J. Y. Henry³, J. Jegoudez⁵, and A. Revcolevschi⁵

¹Laboratoire de Cristallographie, CNRS, Boîte Postale 166, 38042 Grenoble Cedex 9, France
²European Synchrotron Radiation Facility, Avenue Jules Horowitz, Boîte Postale 220, 38042 Grenoble Cedex 9, France
³Commissariat à l’Energie Atomique, Département de Recherche Fondamentale sur la Matière Condensée, SPSMS/MDN, 38054 Grenoble Cedex 9, France
⁴Laboratoire de Physique des Solides, CNRS, Université Paris-Sud, Bâtiment 510, 91405 Orsay Cedex, France
⁵Laboratoire de Physico Chimie des Solides, CNRS, UMR 8648, Université Paris-Sud, Bâtiment 414, 91405 Orsay Cedex, France

^*Present address: Physics Department, University of Liverpool, Oliver Lodge Laboratory, Liverpool L69 7ZE, England.

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Vol. 65, Iss. 18 — 1 May 2002

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