Quantitative Structure-Based Prediction of Electron Spin Decoherence in Organic Radicals.
Quantitative Structure-Based Prediction of Electron Spin Decoherence in Organic Radicals.
复制标题
DOI:
10.1021/acs.jpclett.0c00768
复制
发表时间:
2020-05-07
期刊:
影响因子:
--
通讯作者:
Stoll S
中科院分区:
文献类型:
--
作者:
Canarie ER;Jahn SM;Stoll S
The decoherence of electron spins in paramagnetic molecules limits sensitivity and resolution in electron paramagnetic resonance (EPR) spectroscopy, and it represents a challenge for utilizing paramagnetic molecules as qubit building blocks for quantum information devices. Traditionally, electron spin decoherence is modeled as driven by an external dynamic stochastic process with a phenomenological rate constant. Here, we show that the electron spin decoherence behavior of organic radicals in frozen aqueous solution can be quantitatively predicted from just molecular structure and solvation geometry using a fully deterministic quantum model with a static spin Hamiltonian that includes nucleus-nucleus couplings. We present experiments and simulations on two nitroxide radicals and one trityl radical, which have decoherence time scales of 4-5 μs below 60 K. We show that nuclei within 12 Å contribute to decoherence, with the strongest impact from protons 4-7 Å from the electron spin.
登录
查看更多内容
影响因子:
3.7
作者:
HU, P;HARTMANN, SR
通讯作者:
HARTMANN, SR
影响因子:
--
作者:
Harmer, Jeffrey R.
通讯作者:
Harmer, Jeffrey R.
影响因子:
--
作者:
ROWAN, LG;HAHN, EL;MIMS, WB
通讯作者:
MIMS, WB
影响因子:
41.2
作者:
Morley, Gavin W.;Lueders, Petra;Monteiro, Tania S.
通讯作者:
Monteiro, Tania S.
影响因子:
3.7
作者:
Witzel, Wayne M.;Carroll, Malcolm S.;Das Sarma, S.
通讯作者:
Das Sarma, S.