1. The Pennsylvania State University, University Park, Pennsylvania 16802, USA
2. Wolfspeed, a Cree Company, 3028 E. Cornwallis Rd, Research Triangle Park, North Carolina 27709, USA
3. United States Army Research Laboratory, 2800 Powder Mill Road, Adelphi, Maryland 20783, USA
4. National Institute of Standards and Technology, 100 Bureau Dr, Gaithersburg, Maryland 20899, USA