Suchergebnisse

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. ; This work received financial support from the European Union's Horizon 2020 Research and Innovation Programme under Grant Agreement 767227 (FET-OPEN project PETER), the Center for Integrated Quantum Science and Technology (IQST), and the Carl Zeiss Foundation. The authors thank Benjamin Gerlach for experimental contributions at early stages of this work. The authors gratefully acknowledge useful discussions with James Borchert, Tobias Wollandt, and Dr. Hagen Klauk of the Max Planck Institute of Solid State Research in Stuttgart. The authors thank David Weißhaupt (IHT, University of Stuttgart) for cutting the transistor substrates. Open access funding enabled and organized by Projekt DEAL.