1. Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
2. Interdisciplinary Center for Electron Microscopy, CIME, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
3. Institute of Solid State Physics, University of Bremen, 28359 Bremen, Germany
4. School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore
5. Microsoft Quantum Lab Delft, Delft University of Technology, 2600 GA Delft, The Netherlands
6. ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Catalonia, Spain