1. Division of Materials Physics and Center of Excellence for Advanced Materials and Sensing Devices, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
2. Division of Materials Chemistry, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
3. Department of Physics, Faculty of Science, University of Zagreb, Bijenička 32, 10000 Zagreb, Croatia
4. Fk. 4, Physik, Bergische Universität Wuppertal, Gauss-Straße 20, D-42097 Wuppertal, Germany
5. Department of Physics and Centre for Micro- and Nanosciences and Technologies, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia
6. Institute of Crystallography—CNR, via Amendola 122/o, 70126 Bari, Italy