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

M. Fiebig; M. Hudl; M. Weil; P. Nordblad; R. Mathieu; S. A. Ivanov; Th. Lottermoser; V. Carolus; Y. Taguchi; Y. Tokunaga

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Complex magnetism and magnetic field-driven electrical polarization in Co₃TeO₆

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arxiv 1108.4186 v1 pith:FEEL3K5E submitted 2011-08-21 cond-mat.str-el cond-mat.mtrl-sci

Complex magnetism and magnetic field-driven electrical polarization in Co₃TeO₆

M. Hudl , R. Mathieu , S. A. Ivanov , M. Weil , V. Carolus , Th. Lottermoser , M. Fiebig , Y. Tokunaga

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Y. Taguchi Y. Tokura P. Nordblad

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classification cond-mat.str-el cond-mat.mtrl-sci

keywords electricalmagneticmagnetic-fieldpolarizationsymmetryapproxbelowbreaking

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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.

Complex magnetism and magnetic field-driven electrical polarization in Co₃TeO₆

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