1. Bayerisches Geoinstitut; Universität Bayreuth; Universitätsstrasse 30 D-95447 Bayreuth Germany
2. Institute of Metal Physics; Russian Academy of Sciences; Urals Division; GSP-170, 18 S. Kovalevskaya Str. Yekaterinburg 620219 Russia
3. Laboratory of Crystallography; Universität Bayreuth; D-95440 Bayreuth Germany
4. Electron Microscopy for Materials Research (EMAT); University of Antwerp; Groenenborgerlaan 171 B-2020 Antwerp Belgium
5. National Institute of Chemical Physics and Biophysics; Akadeemia tee 23 12618 Tallinn Estonia
6. Petra III, P02, Deutsches Elektronen Synchrotron; Notkestr. 85 22607 Hamburg Germany