1. Institute for Electrophysics, Russian Academy of Sciences, Ekaterinburg 620016, Russia
2. Diamond Light Source, Harwell Campus, Didcot OX11 0DE, United Kingdom
3. Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
4. Agency for Defense Development Convergence Technology Collaboration Directorate Yuseong, P.O. Box 35, Daejon 34186, Korea
5. Laboratory for Quantum Magnetism, Institute of Physics, Ecole Polytechnique Féderale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland