Structural dichroism in the antiferromagnetic insulating phase of V$_2$O$_3$
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
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2005
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| _version_ | 1866910909357621248 |
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| author | Meneghini, C. Di Matteo, S. Monesi, C. Neisius, T. Paolasini, L. Mobilio, S. Natoli, C. R. Metcalf, P. A. Honig, J. M. |
| author_facet | Meneghini, C. Di Matteo, S. Monesi, C. Neisius, T. Paolasini, L. Mobilio, S. Natoli, C. R. Metcalf, P. A. Honig, J. M. |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_cond_mat_0506432 |
| institution | arXiv |
| publishDate | 2005 |
| record_format | arxiv |
| spellingShingle | Structural dichroism in the antiferromagnetic insulating phase of V$_2$O$_3$ Meneghini, C. Di Matteo, S. Monesi, C. Neisius, T. Paolasini, L. Mobilio, S. Natoli, C. R. Metcalf, P. A. Honig, J. M. Strongly Correlated Electrons 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. |
| title | Structural dichroism in the antiferromagnetic insulating phase of V$_2$O$_3$ |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/cond-mat/0506432 |