Magnetic properties of the magnetoelectric compound Cu2OSeO 3: Magnetization and 77Se NMR study

M. Belesi, T. Philippe, I. Rousochatzakis, H. C. Wu, H. Berger, S. Granville, I. V. Shvets, J. Ph Ansermet

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Abstract

We present magnetization and 77Se Nuclear Magnetic Resonance (NMR) measurements in single crystals of the magneteoelectric compound Cu 2OSeO3. The temperature and field dependence of the magnetization suggest a ferrimagnetic ordering at Tc ≃ 60 K in a 3up-1down configuration. The easy axis of the magnetization is along the [100] crystallographic direction. The 77Se NMR line shape data collected at 14.09 T are consistent with the symmetries imposed by the cubic P213 space group in the temperature range 20-290 K and confirm that the magnetic transition is not accompanied by any lowering of the crystal symmetry as has recently been proposed by Bos et al. [Phys. Rev. B 78 094416 (2008)].

Original languageEnglish (US)
Article number012069
JournalJournal of Physics: Conference Series
Volume303
Issue number1
DOIs
StatePublished - 2011

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