Hybrid Spintronic Materials from Conducting Polymers with Molecular Quantum Bits |
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| Authors: | Michal Kern Lorenzo Tesi David Neusser Nadine Rußegger Mario Winkler Alexander Allgaier Yannic M Gross Stefan Bechler Hannes S Funk Li-Te Chang Jörg Schulze Sabine Ludwigs Joris van Slageren |
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| Institution: | 1. Institute of Physical Chemistry and Center for Integrated Quantum Science and Technology, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany;2. IPOC-Functional Polymers, Institute of Polymer Chemistry and Center for Integrated Quantum Science and Technology, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany;3. Institute of Semiconductor Engineering and Center for Integrated Quantum Science and Technology, University of Stuttgart, Pfaffenwaldring 47, 70569 Stuttgart, Germany |
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| Abstract: | Hybrid materials consisting of organic semiconductors and molecular quantum bits promise to provide a novel platform for quantum spintronic applications. However, investigations of such materials, elucidating both the electrical and quantum dynamical properties of the same material have never been reported. Here the preparation of hybrid materials consisting of conducting polymers and molecular quantum bits is reported. Organic field-effect transistor measurements demonstrate that the favorable electrical properties are preserved in the presence of the qubits. Chemical doping introduces charge carriers into the material, and variable-temperature charge transport measurements reveal the existence of mobile charge carriers at temperatures as low as 15 K. Importantly, quantum coherence of the qubit is shown to be preserved up to temperatures of at least 30 K, that is, in the presence of mobile charge carriers. These results pave the way for employing such hybrid materials in novel molecular quantum spintronic architectures. |
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| Keywords: | charge transport conducting polymers molecular quantum bits quantum coherence thin film |
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