Journal
RSC ADVANCES
Volume 11, Issue 16, Pages 9421-9425Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1ra00783a
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Funding
- Swiss National Science Foundation [PZ00P2_142474]
- Swiss National Science Foundation (SNF) [PZ00P2_142474] Funding Source: Swiss National Science Foundation (SNF)
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The study revealed that Er(trensal) molecules only form islands in the bright areas of the graphene/Ru(0001) substrate, affecting the small-angle rotational domains of the graphene lattice, which is important for the research of the molecule-inorganic hybrid approach in spintronics schemes.
We have studied the morphology of Er(trensal) single-ion molecular magnets adsorbed on graphene/Ru(0001) using X-ray photoemission electron microscopy (X-PEEM). By exploiting the elemental contrast at the erbium M-5 edge we observe the formation of molecular islands of homogeneous height with a lateral size of several micrometers. The graphene/Ru(0001) substrate exhibits two different signal levels in bright-field low-energy electron microscopy (LEEM) and in X-PEEM, which are ascribed to the presence of small-angle rotational domains of the graphene lattice. We find that the Er(trensal) molecules form islands solely on the bright areas, while the remaining dark areas are empty. Our results are important for the growth and study of the molecule-inorganic hybrid approach in spintronics schemes.
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