Abstract
A great interest of molecular electronics comes from its change in electronic structure through external stimuli, which provides functionality at the single-molecule level. Mechanically-controlled break junction (MCBJ) is a great tool for characterizing molecular properties and their response to different stimuli including light, solvent and importantly, mechanical deformation1. In our recent MCBJ experiment, we showed that the conductance of a spring-like molecule can be mechanically tuned up to an order of magnitude at room temperature2. The physical origin of such feature is a consequence of destructive quantum interference between the frontier orbitals. This indicates not only a possible application for mechanical sensors based on this class of molecules, but also demonstrates a good example of quantum interference effect in single molecules. Following this intriguing result, we investigate other properties of this molecule, such as I-V characteristics at low temperature and thermopower. We are also exploring other molecules with similar spring-like structures, where quantum interference effect is expected to manifest.
Original language | English |
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Number of pages | 1 |
Publication status | Published - 2019 |
Event | SPICE-Workshop Molecular Electro-Opto-Spintronics 2019 - Mainz, Germany Duration: 15 Oct 2019 → 18 Oct 2019 https://www.spice.uni-mainz.de/electro-opto-2019-home/ |
Conference
Conference | SPICE-Workshop Molecular Electro-Opto-Spintronics 2019 |
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Country/Territory | Germany |
City | Mainz |
Period | 15/10/19 → 18/10/19 |
Internet address |