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Bilayer of Terbium Double-Decker Single-Molecule Magnets.

ABSTRACT: We report a low-temperature scanning tunneling microscopy and spectroscopy study of the structural and electronic properties of a bilayer of terbium double-decker (bis(phthalocyaninato)terbium(III), TbPc₂) molecules on Au(111) at 5 K. The TbPc₂ molecules are found to adsorb flat on top of a first compact TbPc₂ monolayer on Au(111), forming a square-like packing similar to the underlying first layer. Their frontier-orbital electronic structure, measured by tunneling conductance spectroscopy, clearly differs from that of the underlying first monolayer. Our results of second-layer molecules indicate the absence of, both, hybrid molecule-substrate electronic states close to the Fermi level and a zero-bias Kondo resonance. We attribute these findings to a decreased electronic coupling with the Au(111) substrate.

SUBMITTER: Serrano G

PROVIDER: S-EPMC4931617 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature

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Bilayer of Terbium Double-Decker Single-Molecule Magnets.

Serrano Giulia G Wiespointner-Baumgarthuber Stefan S Tebi Stefano S Klyatskaya Svetlana S Ruben Mario M Koch Reinhold R Müllegger Stefan S

The journal of physical chemistry. C, Nanomaterials and interfaces 20160518 25

We report a low-temperature scanning tunneling microscopy and spectroscopy study of the structural and electronic properties of a bilayer of terbium double-decker (bis(phthalocyaninato)terbium(III), TbPc2) molecules on Au(111) at 5 K. The TbPc2 molecules are found to adsorb flat on top of a first compact TbPc2 monolayer on Au(111), forming a square-like packing similar to the underlying first layer. Their frontier-orbital electronic structure, measured by tunneli ...[more]

PMID: 27390613

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