Complex magnetism and magnetic field-driven electrical polarization in Co$_3$TeO$_6$

Details Complex magnetism and magnetic field-driven electrical polarization in Co$_3$TeO$_6$ Complex magnetism and magnetic field-driven electrical polarization in Co$_3$TeO$_6$

2011-08-21

arxiv.org/abs/1108.4186v1

Phys. Rev. B 84, 180404(R) (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 5 figures

Scientific paper

10.1103/PhysRevB.84.180404

The magnetic and electrical properties of Co$_3$TeO$_6$ single-crystals with corundum related structure reveal a magnetic-field induced polarization below 21 K. A sharp peak in the specific heat at \approx 18 K indicates a reconstructive-type first-order phase transition. From second-harmonic generation (SHG) measurements breaking of inversion symmetry is evident and the point-group symmetry was determined as m. The temperature and magnetic-field dependence of the magnetic and electrical polarizations are discussed in the light of the SHG results.

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