Issue 36, 2022

Spinterface chirality-induced spin selectivity effect in bio-molecules

Abstract

The chirality-induced spin selectivity (CISS) effect, namely the dependence of current through a chiral molecule on spin of the electron, was discovered over two decades ago, and has been suggested for various spin- and chirality-related applications. Yet, quite surprisingly, its physical origin remains elusive, and no theoretical description can quantitatively describe it. Here, we propose a theory for the CISS effect in bio-molecular junctions, based on the interplay between spin–orbit coupling in the electrodes, molecular chirality and spin-transfer torque across the electrode-molecule interface. This theory leads to the first ever quantitative analysis of experimental data, and provides insights into the origin of the CISS effect. The theory presented here can be used to analyze past experiments and to design new experiments, which may lead to deeper understanding of what is considered one of the outstanding problems in molecular electronics and nano-scale transport.

Graphical abstract: Spinterface chirality-induced spin selectivity effect in bio-molecules

Supplementary files

Article information

Article type
Edge Article
Submitted
06 May 2022
Accepted
15 Aug 2022
First published
16 Aug 2022
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2022,13, 10878-10883

Spinterface chirality-induced spin selectivity effect in bio-molecules

Y. Dubi, Chem. Sci., 2022, 13, 10878 DOI: 10.1039/D2SC02565E

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