Author Affiliations

Yi Zhu,¹ Zhonghou Cai,¹ Pice Chen,² Qingteng Zhang,² Matthew J. Highland,³ Il Woong Jung,⁴ Donald A. Walko,¹ Eric M. Dufresne,¹ Jaewoo Jeong,⁵ Mahesh G. Samant,⁵ Stuart S. P. Parkin,^5,6 John W. Freeland,¹ Paul G. Evans,² and Haidan Wen^1,*

¹Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA

²Department of Materials Science and Engineering, University of Wisconsin–Madison, Madison, Wisconsin 53706, USA

³Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA

⁴Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, USA

⁵IBM Almaden Research Center, San Jose, California 95120, USA

⁶Max Planck Institute for Microstructure Physics, Halle 06120, Germany

^*Corresponding author: wen@aps.anl.gov