Structural dichroism in the antiferromagnetic insulating phase of V$_2$O$_3$

C. Meneghini; S. Di Matteo; C. Monesi; T. Neisius; L. Paolasini; S. Mobilio; C. R. Natoli; P. A. Metcalf; J. M. Honig

doi:10.1103/PhysRevB.72.033111

Structural dichroism in the antiferromagnetic insulating phase of V$_2$O$_3$

Strongly Correlated Electrons 2025-04-14 v1

Authors: C. Meneghini , S. Di Matteo , C. Monesi , T. Neisius , L. Paolasini , S. Mobilio , C. R. Natoli , P. A. Metcalf , J. M. Honig

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Abstract

We performed near-edge x-ray absorption spectroscopy (XANES) at V K edge in the antiferromagnetic insulating (AFI) phase of a 2.8% Cr-doped V $_2$ O $_3$ single crystal. Linear dichroism of several percent is measured in the hexagonal plane and found to be in good agreement with ab-initio calculations based on multiple scattering theory. This experiment definitively proves the structural origin of the signal and therefore solves a controversy raised by previous interpretations of the same dichroism as non-reciprocal. It also calls for a further investigation of the role of the magnetoelectric annealing procedure in cooling to the AFI phase.

Keywords

XANES linear dichroism V$_2$O$_3$ multiple scattering theory structural origin

Cite

@article{arxiv.cond-mat/0506432,
  title  = {Structural dichroism in the antiferromagnetic insulating phase of V$_2$O$_3$},
  author = {C. Meneghini and S. Di Matteo and C. Monesi and T. Neisius and L. Paolasini and S. Mobilio and C. R. Natoli and P. A. Metcalf and J. M. Honig},
  journal= {arXiv preprint arXiv:cond-mat/0506432},
  year   = {2025}
}

Comments

4 pages 3 figures. To be published in Phys. Rev. B (2005)

Structural dichroism in the antiferromagnetic insulating phase of V$_2$O$_3$

Abstract

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