Chiro‐Spintronics: Spin‐Dependent Electrochemistry and Water Splitting Using Chiral Molecular Films,Small Methods

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Chiro‐Spintronics: Spin‐Dependent Electrochemistry and Water Splitting Using Chiral Molecular Films
Small Methods ( IF 10.7 ) Pub Date : 2018-02-27 , DOI: 10.1002/smtd.201700313
Prakash Chandra Mondal ₁ , Wilbert Mtangi ₂ , Claudio Fontanesi ₃

Affiliation

Molecular spintronics or spin‐based electronics, which utilizes both the spin degrees of freedom and electron charge, has become a hot topic in modern science. Since the introduction of spintronics in 1988, many efforts have been devoted to controlling spin‐polarized current using an external magnetic field, leading to the implementation of commercial solid‐state devices based on the giant magnetoresistance effect. In molecular spintronics, much progress has been achieved with organic molecules, but the role played by chiral molecules is yet to be explored in detail, while it promises to play a role in the future. It has been proved that the interaction of electrons with chiral molecules is spin specific, as supported by several experimental tools, and by theoretical studies. This effect is named “chiral‐induced spin selectivity” (CISS). CISS is based on the fact that chiral molecules exhibit spin‐specific transport properties, and hence can be used as a substitute for ferromagnetic materials. Here, recent spin‐dependent electrochemistry results are highlighted, where chiral molecules are immobilized on a ferromagnetic electrode. Practical applications of the CISS effect, for spin control of charge transport in complex molecular architectures, and in the water‐splitting process are also reviewed.

中文翻译：

Chiro-Spintronics：使用手性分子膜的自旋依赖性电化学和水分解

同时利用自旋自由度和电子电荷的分子自旋电子学或基于自旋的电子学已成为现代科学中的热门话题。自1988年自旋电子学问世以来，人们一直致力于利用外部磁场控制自旋极化电流，从而基于巨大的磁阻效应实现了商用固态器件的实现。在分子自旋电子学中，有机分子已经取得了很大的进步，但是手性分子所起的作用还有待进一步探讨，尽管它有望在未来发挥作用。已经证明，电子与手性分子的相互作用是自旋特异性的，这在几种实验工具和理论研究的支持下得以实现。该效应称为“手性诱导的自旋选择性”（CISS）。CISS基于以下事实：手性分子具有自旋特异性运输性质，因此可以用作铁磁材料的替代物。在这里，突出了最新的自旋依赖性电化学结果，其中手性分子固定在铁磁电极上。还综述了CISS效应在自旋控制电荷在复杂分子结构中以及在水分解过程中的实际应用。

更新日期：2018-02-27

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