We gratefully acknowledge financial support by the Deutsche Forschungsgemeinschaft (DFG), grant no. HE 1872/34-2. This work was partly carried out with the support of the Karlsruhe Nano Micro Facility (KNMFi, grant no. 2025-034 032388), a Helmholtz Research Infrastructure at Karlsruhe Institute of Technology (KIT, grant no. 2025-034 032388). LY acknowledges financial support from the China Scholarship Council (CSC), grant no. 202207000023. RJV acknowledges the support by the Alexander von Humboldt Foundation. MM acknowledges financial support by the Landesgraduiertenförderung (LGF) by the local state of Baden-Württemberg (Germany). AP and AC acknowledge the Advanced Facility for Microscopy and Microanalysis (AFMM) and its staff at the IISc, Bengaluru, for providing access to the characterization facilities. AC gratefully acknowledges financial support from the Infosys Foundation, Bangalore.