Hybrid Spintronic Materials from Conducting Polymers with Molecular Quantum Bits

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.

Modular Approach to Creating Functionalized Surface Arrays of Molecular Qubits

“…[24,25] Thanks to their synthetic versatility, it is possible to fine-tune the interaction between multiple qubits [26][27][28] and to modify the ligand shell to meet specific practical demands, for example for transferring qubits onto a solid substrate or into a device. [4,[29][30][31][32] The interest toward MSQs has grown quickly and remarkable results concerning the understanding of the relationship between chemical design and quantum properties have been achieved in a short time. [33][34][35][36][37][38][39][40][41] It is now clear that long coherence times can be achieved [42][43][44][45] and that multi spinlevel systems can be designed, thanks to which quantum gate…”

Plasmonic Metasurface Resonators to Enhance Terahertz Magnetic Fields for High‐Frequency Electron Paramagnetic Resonance

“…Moreover, this paves the way for the development of new strategies to integrate molecules in circuits based on plasmonic metasurfaces working in the THz frequency range. [ 58–61 ] Further improvements in antenna design, based on a more in‐depth understanding of their coupling, the interplay with substrate modes, and the possibility of integrating an external active control, are expected to further increase the sensitivity enhancement and enlarge their applicability range. [ 62,63 ] Given the high flexibility and the ease of fabrication, we envisage that more plasmonic metasurface resonators will be designed and customized for different applications in magnetic resonance techniques working at high frequencies.…”

Matrix effects on the magnetic properties of a molecular spin triangle embedded in a polymeric film

“…A polymeric material could serve as the host matrix, wherein the quantum active element, here the molecular spin triangle, would be dispersed. 20 Polymers provide a high degree of variability and can introduce additional functionalities such as electrical conductivity, photo-activation or nano-porosity. However, maintaining the magnetic properties of the molecular spin triangle is paramount.…”