Potential molecular qubits with long coherence time constructed using bromo-substituted trityl radicals

The development of quantum information science has promoted the emergence of novel molecule-based quantum materials, which attracted widespread interest among chemists. Here we synthesized several bromo-substituted trityl radicals and characterized their spin relaxation properties by X-band pulsed e...

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Bibliographic Details
Published in:Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2024-04, Vol.12 (14), p.515-5156
Main Authors: Zhang, Yu-Shuang, Fan, Yi-Fei, Tao, Xing-Quan, Li, Geng-Yuan, Deng, Qing-Song, Liu, Zheng, Wang, Ye-Xin, Gao, Song, Jiang, Shang-Da
Format: Article
Language:English
Subjects:
Data processing
Electron paramagnetic resonance
Electron spin
Organic chemistry
Quantum phenomena
Qubits (quantum computing)
Radicals
Room temperature
Substitutes
Superhigh frequencies
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Summary:The development of quantum information science has promoted the emergence of novel molecule-based quantum materials, which attracted widespread interest among chemists. Here we synthesized several bromo-substituted trityl radicals and characterized their spin relaxation properties by X-band pulsed electron paramagnetic resonance. The coherence time of bromo-substituted trityl radicals is enhanced upon the increment of the bromo-substitutions, and significantly longer than the chloro-substituted analogues. In addition, a series of PMMA films doped with different bromo-substituted trityl radicals are prepared and their quantum coherence is characterized at room temperature. The long coherence time of bromo-substituted trityl radicals suggests that these organic molecules are expected to be molecule-based quantum materials for applications in quantum information processing. Bromo-substituted trityl radicals with long room-temperature quantum coherence are expected to be the future generation of molecular-based quantum bits.
ISSN:2050-7526
2050-7534
DOI:10.1039/d3tc04395a