1. Department of Physics, University of Wisconsin—Madison, 1150 University
Avenue, Madison, Wisconsin 53706, United States
2. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
3. Departamento de Química
Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
4. The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
5. Centro de Física de Materiales
(CSIC-UPV-EHU), Material Physics Center, 20018, San Sebastián, Spain
6. Departamento de Física Aplicada
I, Universidad del País Vasco, 20018,
San Sebastián, Spain
7. Donostia International Physics Center, 20018, San Sebastián, Spain