1. Quantum Materials Center, Physics Department, University of Maryland, College Park, Maryland 20742, USA
2. Department of Physics, Quantum Centres in Diamond and Emergent Materials (QuCenDiEM)-Group, Nano Functional Materials Technology Centre and Materials Science Research Centre, Indian Institute of Technology Madras, Chennai 600036, India
3. Materials Science and Engineering Department, University of Maryland, College Park, Maryland 20742, USA
4. NUSNNI NanoCore, National University of Singapore, Singapore 117411, Singapore
5. Neocera LLC, Beltsville, Maryland 20705, USA