1. Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing 100190 China
2. CAS Center for Excellence in Topological Quantum Computation and School of Physical SciencesUniversity of Chinese Academy of SciencesBeijing 100049 China
3. Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurements of Ministry of EducationSchool of PhysicsBeijing Institute of TechnologyBeijing 100081 China
4. Beijing Key Laboratory of Nanophotonics & Ultrafine Optoelectronic SystemsMicro‐nano CenterSchool of PhysicsBeijing Institute of TechnologyBeijing 100081 China
5. State Key Laboratory of Superlattices and MicrostructuresInstitute of Semiconductors Chinese Academy of SciencesBeijing 100083 China
6. Songshan Lake Materials LaboratoryDongguan Guangdong 523808 China