Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2005-06-17
Phys. Rev. B 67, 195105 (2003)
Physics
Condensed Matter
Strongly Correlated Electrons
9 pages, 4 figures
Scientific paper
10.1103/PhysRevB.67.195105
We critically review the experimental determination of the nonreciprocal x-ray gyrotropy in the monoclinic antiferromagnetic insulating phase of V_2O_3 highlighting some of its paradoxical consequences. We also note the apparent absence of a normal (non magnetic) linear dichroism in the data and speculate on the possible reasons for it. Given the importance of the implications of a non reciprocal effect for the physics of V_2O_3, one of the paradigmatic strongly correlated system, we point up the need for at least repeating the experiment under better controlled conditions and suggest possible tests for establishing unambiguously its existence.
Joly Yves
Matteo Sergio Di
Natoli Calogero R.
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