Procopios C. Constantinou⁵, Anna Hartl⁵, Enrico G. Della Valle⁵, Camilla Pellegrini¹, Vladimir N. Strocov⁵, Stuart S. P. Parkin¹, and Niels B. M. Schröter^1,2,6,‡

• ¹Max Planck Institut für Mikrostrukturphysik, Weinberg 2, 06120 Halle (Saale), Germany
• ²Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, 06099 Halle, Germany
• ³Department of Electrical and Computer Engineering, University of Illinois, Urbana-Champaign, Illinois 61801, USA
• ⁴Diamond Light Source, Oxfordshire OX11 0DE, United Kingdom
• ⁵Swiss Light Source, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
• ⁶Halle-Berlin-Regensburg Cluster of Excellence CCE, Halle (Saale), Saxony-Anhalt, Germany

• ^*Contact author: matthewg@illinois.edu
• ^†Present address: PSI Center for Neutron and Muon Sciences CNM, 5232 Villigen PSI, Switzerland.
• ^‡Contact author: niels.schroeter@mpi-halle.mpg.de