Confined Room-Temperature Ferromagnetism in Kagome (Fe3Sn2/CoSn) Superlattices

This research was primarily supported by the U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES), under Award No. DE-SC0024204. M.T.P. and Y.-T.S. acknowledge research support from the U.S. Department of Energy, Basic Energy Sciences (Award No. DE-SC0025423) for electron microscopy work. Electron microscopy data were acquired at the Core Center of Excellence in Nano Imaging at the University of Southern California. M.T.P. and Y.-T.S. acknowledge A. Avishai, H. Khant, C. Marks, and J. Curulli for the careful maintenance of the instruments. Partial support for A.J.G. and J.A.B. was provided by the Center for High Resolution Neutron Scattering, a partnership between the National Institute of Standards and Technology and the National Science Foundation under Agreement No. DMR-2010792. Unless otherwise noted, the NIST work was funded solely by the US government. A portion of this research used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory; the beam time was allocated to MAGREF on proposal number IPTS-32806. Part of this work/the PNR results is based on experiments performed at the Swiss Spallation Neutron Source SINQ, PSI, Villigen, Switzerland. We are grateful to Hussein Hijazi for collecting the RBS data.