1. School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
2. Center for Magnetism and Magnetic Materials, University of Colorado, Colorado Springs, Colorado Springs, Colorado 80918, USA
3. Department of Mathematics, Physics, and Electrical Engineering, Northumbria University, Newcastle upon Tyne NE1 8ST, United Kingdom
4. Department of Physics, The University of York, York YO10 5DD, United Kingdom
5. NISE Department, Max Planck Institute of Microstructure Physics, Halle, Germany
6. Institute for Functional Intelligent Materials, National University of Singapore, S9, 4 Science Drive 2, 117544, Singapore
7. Chongqing 2D Materials Institute, Liangjiang New Area, Chongqing 400714, China
8. National Graphene Institute, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
9. Institute for Condensed Matter Physics and Complex Systems, School of Physics and Astronomy, The University of Edinburgh, Edinburgh EH9 3FD, United Kingdom
10. Higgs Centre for Theoretical Physics, The University of Edinburgh, Edinburgh EH9 3FD, United Kingdom