[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Natl Lab Superconduct, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
[3] Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China
[4] Songshan Lake Mat Lab, Dongguan 523808, Peoples R China