About the Authors

Tiago Ramalho

Contributed equally to this work with: Tiago Ramalho, Andrea Meyer

Affiliation Physics Department, TU München, Garching, Germany

Andrea Meyer

Contributed equally to this work with: Tiago Ramalho, Andrea Meyer

Affiliation Physics Department and ZNN/WSI, TU München, Garching, Germany

Andrea Mückl

Affiliation Physics Department and ZNN/WSI, TU München, Garching, Germany

Korbinian Kapsner

Affiliation Physics Department and ZNN/WSI, TU München, Garching, Germany

Ulrich Gerland

gerland@tum.de (UG); simmel@tum.de (FCS)

Affiliations Physics Department, TU München, Garching, Germany, Nanosystems Initiative Munich, Munich, Germany

Friedrich C. Simmel

gerland@tum.de (UG); simmel@tum.de (FCS)

Affiliations Physics Department and ZNN/WSI, TU München, Garching, Germany, Nanosystems Initiative Munich, Munich, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: A. Meyer A. Mückl FCS. Performed the experiments: A. Meyer A. Mückl. Analyzed the data: TR A. Meyer KK UG FCS. Contributed reagents/materials/analysis tools: TR KK. Wrote the paper: TR A. Meyer UG FCS.