1. Institute of Physics, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
2. James Watt School of Engineering, Electronics and Nanoscale Engineering Division, University of Glasgow, Glasgow G12 8QQ, United Kingdom
3. Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
4. National University of Science and Technology MISIS, 119049 Moscow, Russia
5. Russian Quantum Center, 143025 Skolkovo, Moscow, Russia