Hybrid Spintronic Materials from Conducting Polymers with Molecular Quantum Bits

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 r...

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Bibliographic Details
Published in:Advanced functional materials 2021-02, Vol.31 (7), p.n/a
Main Authors: Kern, Michal, Tesi, Lorenzo, Neusser, David, Rußegger, Nadine, Winkler, Mario, Allgaier, Alexander, Gross, Yannic M., Bechler, Stefan, Funk, Hannes S., Chang, Li‐Te, Schulze, Jörg, Ludwigs, Sabine, van Slageren, Joris
Format: Article
Language:English
Subjects:
Charge materials
Charge transport
Coherence
Conducting polymers
Current carriers
Electrical properties
Materials science
molecular quantum bits
Organic semiconductors
quantum coherence
Quantum phenomena
Qubits (quantum computing)
thin film
Transistors
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Summary: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. Hybrid materials made of the P3HT conducting polymer and a copper(II) based molecular quantum bit are prepared. Mobile charge carriers are observed down to 15 K and quantum coherence up to 30 K. Hence, quantum coherence is preserved in the presence of mobile charge carriers paving the way to using these materials for molecular spintronics devices.
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.202006882