The theoretical explanation for the chiral-induced spin selectivity effect, in which electrons’ passage through a chiral system depends on their spin and the handedness of the system, remains incomplete. Although most experimental work was performed at room temperature, most of the proposed theories did not include vibrations. Here, we present temperature-dependent experiments and a theoretical model that captures all observations and provides spin polarization values that are consistent with the experimental results. The model includes the vibrational contribution to the spin orbit coupling. It highlights the importance of dissipation and the relation between the effect and the optical activity. The model explains the main features related to the chiral-induced spin selectivity effect and provides a new framework for future calculations and experiments.

Temperature-Dependent Chiral-Induced Spin Selectivity Effect: Experiments and Theory / Das, T. K.; Tassinari, F.; Naaman, R.; Fransson, J.. - In: JOURNAL OF PHYSICAL CHEMISTRY. C. - ISSN 1932-7447. - 126:6(2022), pp. 3257-3264. [10.1021/acs.jpcc.1c10550]

Temperature-Dependent Chiral-Induced Spin Selectivity Effect: Experiments and Theory

Tassinari F.;Naaman R.;
2022

Abstract

The theoretical explanation for the chiral-induced spin selectivity effect, in which electrons’ passage through a chiral system depends on their spin and the handedness of the system, remains incomplete. Although most experimental work was performed at room temperature, most of the proposed theories did not include vibrations. Here, we present temperature-dependent experiments and a theoretical model that captures all observations and provides spin polarization values that are consistent with the experimental results. The model includes the vibrational contribution to the spin orbit coupling. It highlights the importance of dissipation and the relation between the effect and the optical activity. The model explains the main features related to the chiral-induced spin selectivity effect and provides a new framework for future calculations and experiments.
2022
126
6
3257
3264
Temperature-Dependent Chiral-Induced Spin Selectivity Effect: Experiments and Theory / Das, T. K.; Tassinari, F.; Naaman, R.; Fransson, J.. - In: JOURNAL OF PHYSICAL CHEMISTRY. C. - ISSN 1932-7447. - 126:6(2022), pp. 3257-3264. [10.1021/acs.jpcc.1c10550]
Das, T. K.; Tassinari, F.; Naaman, R.; Fransson, J.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1286862
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