1. School of Physics, Southeast University, Nanjing, Jiangsu 21189, People’s Republic of China
2. Center for Theoretical Physics, Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
3. Department of Physical and Chemical Sciences, University of L’Aquila, Via Vetoio, I-67100 Coppito, L’Aquila, Italy
4. Department of Physics and Guangdong-Hong Kong Joint Laboratory of Quantum Matter, The University of Hong Kong, Hong Kong, People’s Republic of China
5. Consiglio Nazionale delle Ricerche, Institute for Superconducting and Innovative Materials and Devices (CNR−SPIN), University of L’Aquila, Via Vetoio, I-67100 Coppito, L’Aquila, Italy