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Addressing a lattice of rotatable molecular dipoles with the electric field of an STM tip.
Frauhammer, Timo; Gerhard, Lukas; Edelmann, Kevin; Lindner, Marcin; Valásek, Michal; Mayor, Marcel; Wulfhekel, Wulf.
Afiliación
  • Frauhammer T; Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), D-76021 Karlsruhe, Germany. timo.frauhammer@kit.edu and Physikalisches Institut, Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany.
  • Gerhard L; Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology (KIT), D-76021 Karlsruhe, Germany.
  • Edelmann K; Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), D-76021 Karlsruhe, Germany. timo.frauhammer@kit.edu and Physikalisches Institut, Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany.
  • Lindner M; Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), D-76021 Karlsruhe, Germany. timo.frauhammer@kit.edu.
  • Valásek M; Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), D-76021 Karlsruhe, Germany. timo.frauhammer@kit.edu.
  • Mayor M; Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), D-76021 Karlsruhe, Germany. timo.frauhammer@kit.edu and Department of Chemistry, University of Basel, St. Johannsring 19, CH-4056 Basel, Switzerland and Lehn Institute of Functional Materials (LIFM), School of Chemistry, Sun Yat-S
  • Wulfhekel W; Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), D-76021 Karlsruhe, Germany. timo.frauhammer@kit.edu and Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology (KIT), D-76021 Karlsruhe, Germany.
Phys Chem Chem Phys ; 23(8): 4874-4881, 2021 Mar 04.
Article en En | MEDLINE | ID: mdl-33616122
Functional molecular groups mounted on specific foot structures are ideal model systems to study intermolecular interactions, due to the possibility to separate the functionality and the adsorption mechanism. Here, we report on the rotational switching of a thioacetate group mounted on a tripodal tetraphenylmethane (TPM) derivative adsorbed in ordered islands on a Au(111) surface. Using low temperature scanning tunnelling microscopy, individual freestanding molecular groups of the lattice can be switched between two bistable orientations. The functional dependence of this rotational switching on the sample bias and tip-sample distance allows us to model the energy landscape of this molecular group as an electric dipole in the electric field of the tunnelling junction. As expected for the interaction of two dipoles, we found states of neighbouring molecules to be correlated.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Chem Chem Phys Asunto de la revista: BIOFISICA / QUIMICA Año: 2021 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Reino Unido
Texto completo
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Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Chem Chem Phys Asunto de la revista: BIOFISICA / QUIMICA Año: 2021 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Reino Unido