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| 001 | 916657 | ||
| 005 | 20230123110801.0 | ||
| 024 | 7 | _ | |a 10.3390/nano12193281 |2 doi |
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| 037 | _ | _ | |a FZJ-2023-00009 |
| 082 | _ | _ | |a 540 |
| 100 | 1 | _ | |a Safari, Mohammad Reza |0 P:(DE-Juel1)180889 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Deposition of Chiral Heptahelicene Molecules on Ferromagnetic Co and Fe Thin-Film Substrates |
| 260 | _ | _ | |a Basel |c 2022 |b MDPI |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a The discovery of chirality-induced spin selectivity (CISS), resulting from an interaction between the electron spin and handedness of chiral molecules, has sparked interest in surface-adsorbed chiral molecules due to potential applications in spintronics, enantioseparation, and enantioselective chemical or biological processes. We study the deposition of chiral heptahelicene by sublimation under ultra-high vacuum onto bare Cu(111), Co bilayer nanoislands on Cu(111), and Fe bilayers on W(110) by low-temperature spin-polarized scanning tunneling microscopy/spectroscopy (STM/STS). In all cases, the molecules remain intact and adsorb with the proximal phenanthrene group aligned parallel to the surface. Three degenerate in-plane orientations on Cu(111) and Co(111), reflecting substrate symmetry, and only two on Fe(110), i.e., fewer than symmetry permits, indicate a specific adsorption site for each substrate. Heptahelicene physisorbs on Cu(111) but chemisorbs on Co(111) and Fe(110) bilayers, which nevertheless remain for the sub-monolayer coverage ferromagnetic and magnetized out-of-plane. We are able to determine the handedness of individual molecules chemisorbed on Fe(110) and Co(111), as previously reported for less reactive Cu(111). The demonstrated deposition control and STM/STS imaging capabilities for heptahelicene on Co/Cu(111) and Fe/W(110) substrate systems lay the foundation for studying CISS in ultra-high vacuum and on the microscopic level of single molecules in controlled atomic configurations. |
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| 700 | 1 | _ | |a Matthes, Frank |0 P:(DE-Juel1)130822 |b 1 |
| 700 | 1 | _ | |a Ernst, Karl-Heinz |0 P:(DE-Juel1)184807 |b 2 |
| 700 | 1 | _ | |a Bürgler, Daniel E. |0 P:(DE-Juel1)130582 |b 3 |
| 700 | 1 | _ | |a Schneider, Claus M. |0 P:(DE-Juel1)130948 |b 4 |
| 773 | _ | _ | |a 10.3390/nano12193281 |g Vol. 12, no. 19, p. 3281 - |0 PERI:(DE-600)2662255-5 |n 19 |p 3281 - |t Nanomaterials |v 12 |y 2022 |x 2079-4991 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/916657/files/nanomaterials-12-03281.pdf |y OpenAccess |
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