Raman spectroscopy of the low-dimensional antiferromagnet SrRu2O6 with large Néel temperature

  title={Raman spectroscopy of the low-dimensional antiferromagnet 
 with large N{\'e}el temperature},
  author={Yu. S. Ponosov and Evgenia V. Komleva and Dmitry A. Zamyatin and Richard I. Walton and Sergey V. Streltsov},
  journal={Physical Review B},
We report results of the Raman measurements for ${\mathrm{SrRu}}_{2}{\mathrm{O}}_{6}$ having extraordinary high N\'eel temperature for a layered material. No additional phonon modes were detected at the temperature of magnetic transition thus excluding lowering of the symmetry in the magnetically ordered phase. An unusual increase in softening and damping of some phonons as the temperature approaches ${T}_{N}$ indicates the appearance of a continuum of interacting electronic excitations at $T… 

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