Towards Quantum Sensing of Chiral-Induced Spin Selectivity: Probing Donor-Bridge-Acceptor Molecules with NV Centers in Diamond
| Autor: | Völker, Laura A., Herb, Konstantin, Janitz, Erika, Degen, Christian L., Abendroth, John M. |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | J. Chem. Phys. 28 April 2023; 158 (16): 161103 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1063/5.0145466 |
| Popis: | Photoexcitable donor-bridge-acceptor (D-B-A) molecules that support intramolecular charge transfer are ideal platforms to probe the influence of chiral-induced spin selectivity (CISS) in electron transfer and resulting radical pairs. In particular, the extent to which CISS influences spin polarization or spin coherence in the initial state of spin-correlated radical pairs following charge transfer through a chiral bridge remains an open question. Here, we introduce a quantum sensing scheme to measure directly the hypothesized spin polarization in radical pairs using shallow nitrogen-vacancy (NV) centers in diamond at the single- to few-molecule level. Importantly, we highlight the perturbative nature of the electron spin-spin dipolar coupling within the radical pair, and demonstrate how Lee-Goldburg decoupling can preserve spin polarization in D-B-A molecules for enantioselective detection by a single NV center. The proposed measurements will provide fresh insight into spin selectivity in electron transfer reactions. Comment: 7 pages and 4 pages appendix including an extensive description of the initial spin state of photo-generated radical pairs |
| Databáze: | arXiv |
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