1. IMDEA Nanoscience, C/Faraday 9, Campus de Cantoblanco, 28049 Madrid, Spain
2. Departamento de Física de la Materia Condensada, Instituto Nicolás Cabrera and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
3. Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Street 15, 12489 Berlin, Germany
4. Elettra Sincrotrone Trieste, Strada Statale 14 km 163.5, 34149 Trieste, Italy
5. Synchrotron SOLEIL, Saint-Aubin, 91192 Gif-sur-Yvette, France
6. Peter Grünberg Institute and Institute for Advanced Simulation, Forschungszentrum Jülich, D-52425 Jülich, Germany