1. Jožef Stefan Institute; Jamova c. 39 1000 Ljubljana Slovenia
2. Laboratory for Neutron Scattering and Laboratory for Micro- und Nanotechnology and Laboratory for Muon-Spin Spectroscopy; Paul Scherrer Institut; CH-5232 Villigen Switzerland
3. Experimental Physics V; Center for Electronic Correlations and Magnetism; University of Augsburg; 86135 Augsburg Germany
4. Dresden High Magnetic Field Laboratory (HLD); Helmholtz-Zentrum Dresden-Rossendorf; 01328 Dresden Germany
5. Institute of Applied Physics; Academy of Sciences of Moldova; MD-2028 Chisinau Republic of Moldova