1. Deutsches Elektronen‐Synchrotron DESY Notkestr. 85 22607 Hamburg Germany
2. Chair for Functional Materials Department of Physics TUM School of Natural Sciences James‐Franck‐Str. 1 85748 Garching Germany
3. Department of Fibre and Polymer Technology KTH Royal Institute of Technology Teknikringen 56‐58 10044 Stockholm Sweden
4. Wallenberg Wood Science Center (WWSC) KTH Royal Institute of Technology Teknikringen 56‐58 Stockholm 10044 Sweden
5. Centre for X‐ray and Nano Science CXNS Deutsches Elektronen‐Synchrotron (DESY) 22607 Hamburg Germany
6. Department of Physics University of Hamburg Notkestraße 9‐11 22607 Hamburg Germany
7. Heinz Maier‐Leibnitz‐Zentrum (MLZ) Technische Universität München Lichtenbergstr. 1 85748 Garching Germany