Department of Physics and Astronomy: Publications and Other Research
ORCID IDs
Sumit Beniwal https://orcid.org/0000-0002-9381-5481
Birgit Weber https://orcid.org/0000-0002-9861-9447
Peter A Dowben https://orcid.org/0000-0002-2198-4710
Axel Enders https://orcid.org/0000-0002-2198-4710
Date of this Version
7-29-2020
Citation
J. Phys.: Condens. Matter 32 (2020) 324003
https://doi.org/10.1088/1361-648X/ab808d
Abstract
The iron(II) spin crossover complex Fe(1,10-phenanthroline)2(NCS)2, dubbed Fe-phen, has been studied with scanning tunneling microscopy, after adsorption on the 'herringbone' reconstructed surface of Au(111) for sub-monolayer coverages. The Fe-phen molecules attach, through their NCS-groups, to the Au atoms of the fcc domains of the reconstructed surface only, thereby lifting the herringbone reconstruction. The molecules stack to form 1D chains, which run along the Au[110] directions. Neighboring Fe-phen molecules are separated by approximately 2.65 nm, corresponding to 9 atomic spacings in this direction. The molecular axis, defined by the two phenanthroline groups, is aligned perpendicular to the chain axis, along the Au [221] direction, thereby bridging over 5 atomic spacings, in this direction. Experimental evidence suggests that the molecular spins are locked in a mixed state in the sub-monolayer regime at temperatures between 100 K and 300 K.
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Comments
CC-BY