1. Physikalisches Institut Westfälische Wilhelms‐Universität Wilhelm‐Klemm‐Straße 10 48149 Münster Germany
2. Center for Nanotechnology Heisenbergstraße 11 48149 Münster Germany
3. Center for Joint Quantum Studies and Department of Physics Tianjin University Tianjin 300350 China
4. Department of Physics and Beijing Key Laboratory of Optoelectronic Functional Materials and Micro‐Nano Devices Renmin University of China Beijing 100872 China
5. Center for Multiscale Theory and Computation 48149 Münster Germany