1. Chair in Hybrid Nanosystems, Nanoinstitut München, Fakultät für Physik Ludwig‐Maximilians‐Universität München 80539 München Germany
2. The Blackett Laboratory, Department of Physics Imperial College London London SW7 2AZ UK
3. Departamento de Física Universidade Federal de Pernambuco Recife‐PE 50670‐901 Brazil
4. Fakultät für Physik and Center for NanoScience (CeNS) Ludwig‐Maximilians‐Universität 80539 München Germany
5. Insitute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) Singapore 138634 Singapore
6. School of Physics and Astronomy Monash University Clayton VIC 3800 Australia