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Updated: Aug 1, 2026

Non-invasive 3D-Visualization with Sub-micron Resolution Using Synchrotron-X-ray-tomography
Published on: May 27, 2008
First observation of nonreciprocal X-Ray gyrotropy
Goulon1, Rogalev, Goulon-Ginet
1European Synchrotron Radiation Facility (ESRF), Boite Postale 220, 38043 Grenoble Cedex, France.
Abstract:
We report the first observation of a nonreciprocal x-ray linear dichroism caused by the time-reversal odd, real part zeta of the complex gyrotropy tensor zeta(*) which is dominated by electric dipole-electric quadrupole E1E2 interference terms. A nonreciprocal transverse anisotropy was observed in the low temperature insulating phase of a Cr doped V2O3 Mott crystal when a single antiferromagnetic domain was grown by magnetoelectric annealing along the hexagonal c axis. This new element (edge) specific spectroscopy could nicely complement x-ray magnetic circular dichroism which is silent for antiferromagnetic materials.
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