Mechanism of Electron Spin Decoherence in a Partially Deuterated Glassy Matrix.
Mechanism of Electron Spin Decoherence in a Partially Deuterated Glassy Matrix.
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DOI:
10.1021/acs.jpclett.2c00939
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发表时间:
2022-06-23
影响因子:
5.7
通讯作者:
Stoll, Stefan
中科院分区:
文献类型:
--
作者:
Jahn, Samuel M.;Canarie, Elizabeth R.;Stoll, Stefan
Long electron spin coherence lifetimes are essential for applications in quantum information science and electron paramagnetic resonance, for instance for nanoscale distance measurements in biomolecular systems using double electron–electron resonance. We experimentally investigate the decoherence dynamics under the Hahn echo sequence of the organic radical d18-TEMPO in a variably deuterated frozen water:glycerol matrix. The coherence time (phase memory time) TM scales with proton concentration as [1H]−0.65. For selectively deuterated matrices, decoherence is accelerated in the presence of proton clustering, that is, substantial short-range density in the proton–proton radial distribution functions (< 3 Å). Simulations using molecular dynamics and many-body spin quantum dynamics show excellent agreement with experiment and show that geminal proton pairs such as CH2 and OH2 groups are major decoherence drivers. This provides a predictive tool for designing molecular systems with long electron spin coherence times.
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影响因子:
8.6
作者:
GORDON, JP;BOWERS, KD
通讯作者:
BOWERS, KD
DOI:
10.1021/acs.jpclett.0c00768
发表时间:
2020-05-07
期刊:
The journal of physical chemistry letters
影响因子:
--
作者:
Canarie ER;Jahn SM;Stoll S
通讯作者:
Stoll S
影响因子:
3.7
作者:
HU, P;HARTMANN, SR
通讯作者:
HARTMANN, SR
影响因子:
2.8
作者:
Abe, E;Isoya, J;Itoh, KM
通讯作者:
Itoh, KM
影响因子:
4.4
作者:
Kveder, Marina;Rakvin, Boris;You, Jiangyang
通讯作者:
You, Jiangyang