1. Department of Applied Physics, Chalmers University of Technology, Fysikgränd 3, S-412 96 Gothenburg, Sweden
2. MAX IV Laboratory, Lund University, S-221 00 Lund, Sweden
3. Nelson Mandela Metropolitan University, Gardham Ave., Port Elizabeth 6031, South Africa
4. ISIS Facility, Rutherford Appleton Laboratory, Chilton, OX11 0QX Didcot, United Kingdom
5. Materials Science and Engineering, KTH Royal Institute of Technology, Brinellvägen 23, S-100 44 Stockholm, Sweden