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Deposition of chiral heptahelicene molecules on ferromagnetic Co and Fe thin-film substrates
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SYSNO ASEP 0561708 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Deposition of chiral heptahelicene molecules on ferromagnetic Co and Fe thin-film substrates Author(s) Safari, M.R. (DE)
Matthes, F. (DE)
Ernst, Karl-Heinz (FZU-D) ORCID
Bürgler, D.E. (DE)
Schneider, C. M. (DE)Number of authors 5 Article number 3281 Source Title Nanomaterials. - : MDPI
Roč. 12, č. 19 (2022)Number of pages 18 s. Language eng - English Country CH - Switzerland Keywords chiral molecules ; molecular deposition ; ferromagnetic surfaces ; adsorption geometry ; STM Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000867959100001 EID SCOPUS 85139774828 DOI 10.3390/nano12193281 Annotation 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.
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://hdl.handle.net/11104/0334224
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