Magnetic States in Double Metal Ion Single-Molecule Junctions

Drittmittelfinanzierte Gruppenförderung - Teilprojekt

Details zum übergeordneten Gesamtprojekt

Titel des Gesamtprojektes: SPP 1243: Quantum transport at the molecular scale


Details zum Projekt

Projektleiter/in:
Prof. Dr. Heiko Weber


Beteiligte FAU-Organisationseinheiten:
Lehrstuhl für Angewandte Physik

Mittelgeber: DFG / Schwerpunktprogramm (SPP)
Projektstart: 01.07.2006
Projektende: 30.11.2012


Forschungsbereiche

Elektronentransport auf molekularer Skala (Prof. Weber)
Lehrstuhl für Angewandte Physik


Abstract (fachliche Beschreibung):


We perform single-molecule junction experiments. Our long-term goal is to understand and control charge transport across molecules. As a first step (first two years) within the priority program we will focus on methodological improvements. In this project we want to control charge states in single-molecule junctions. We will approach this goal by two means: First, we will redesign the experimental setup such that an electrostatic gate is available. Second, we will design and synthesize molecules, which provide a well-defined charge state, accessible by finite voltages in a two terminal experiment. We expect an interplay of electrostatic effects driven by asymmetric bias voltage, and by the gate voltage. The starting parameters have to be carefully tuned by a suitable choice of the molecule. We are further interested in the question how the variation of the charge state is associated with changes in the geometry of the molecule.



Forschungsschwerpunkte der FAU
Neue Materialen und Prozesse


Externe Partner

Karlsruhe Institute of Technology (KIT)
Universität Bremen


Publikationen

Wagner, S., Kißlinger, F., Ballmann, S., Schramm, F., Chandrasekar, R., Bodenstein, T.,... Weber, H.B. (2013). Switching of a coupled spin pair in a single-molecule junction. Nature Nanotechnology, 8(8), 575-579. https://dx.doi.org/10.1038/nnano.2013.133
Secker, D., Wagner, S., Ballmann, S.D., Härtle, R., Thoss, M., & Weber, H.B. (2011). Resonant Vibrations, Peak Broadening, and Noise in Single Molecule Contacts: The Nature of the First Conductance Peak. Physical Review Letters, 106, 136807. https://dx.doi.org/10.1103/PhysRevLett.106.136807
Ballmann, S., Hieringer, W., Secker, D., Zheng, Q., Gladysz, J.A., Görling, A., & Weber, H.B. (2010). Molecular wires in single-molecule junctions: Charge transport and vibrational excitations. Chemphyschem, 11(10), 2256-2260. https://dx.doi.org/10.1002/cphc.200900974
Ruben, M., Landa, A., Lörtscher, E., Riel, H., Mayor, M., Görls, H.,... Evers, F. (2008). Charge Transport Through a Cardan-Joint Molecule. Small, 4(12), 2229-2235. https://dx.doi.org/10.1002/smll.200800390

Zuletzt aktualisiert 2018-22-11 um 19:02