Magnetic properties of the magnetoelectric compound Cu2OSeO3: Magnetization and Se-77 NMR study

We present magnetization and Se-77 Nuclear Magnetic Resonance (NMR) measurements in single crystals of the magnetoelectric compound Cu2OSeO3. The temperature and field dependence of the magnetization suggest a ferrimagnetic ordering at T-c similar or equal to 60 K in a 3up-1down configuration. The easy axis of the magnetization is along the [100] crystallographic direction. The Se-77 NMR line shape data collected at 14.09 T are consistent with the symmetries imposed by the cubic P2(1)3 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)].

Published in:
Joint European Magnetic Symposia (Jems), 303, -
Iop Publishing Ltd, Dirac House, Temple Back, Bristol Bs1 6Be, England

 Record created 2012-03-09, last modified 2020-07-30

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