We thank the U.S. National Science Foundation (under CHE-1855328 to WJE and CHE-1800431 to FF) and the Department of Energy (under DE-SC0020260 to SH) for support of this research. Work performed at the NHMFL is supported by the NSF (DMR-1644779) and by the State of Florida. JMY acknowledges support of the NSF Graduate Research Fellowship Program (DGE-1839285). We also thank the Eddleman Quantum Institute for promoting this collaborative project.