The spin selectivity effect in chiral materials
The spin selectivity effect in chiral materials
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DOI：
10.1063/5.0049150
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发表时间：
2021-04-01
期刊：
影响因子：
6.1
通讯作者：
Paltiel, Y.
中科院分区：
文献类型：
--
作者：
Waldeck, D. H.;Naaman, R.;Paltiel, Y.
本文综述了使用不同材料和实验配置对手性诱导自旋选择性（CISS）效应进行的实验。通过对显示CISS效应的不同材料系统的调查，我们确定了所有系统的几个共同属性。其中包括观察两点接触构型的自旋选择性的能力，当其中一个电极是磁性的，以及手性系统的光学活性与材料的自旋过滤特性之间的相关性。此外，最近的实验表明，自旋选择性不需要纯相干电荷输运，并且电子自旋极化在有序介质中持续超过数百纳米。最后，我们指出了关于国际安全战略机制仍需探讨的几个问题。其中包括声子和电子-电子相互作用的作用。
We overview experiments performed on the chiral induced spin selectivity (CISS) effect using various materials and experimental configurations. Through this survey of different material systems that manifest the CISS effect, we identify several attributes that are common to all the systems. Among these are the ability to observe spin selectivity for two point contact configurations, when one of the electrodes is magnetic, and the correlation between the optical activity of the chiral systems and a material's spin filtering properties. In addition, recent experiments show that spin selectivity does not require pure coherent charge transport and the electron spin polarization persists over hundreds of nanometers in an ordered medium. Finally, we point to several issues that still have to be explored regarding the CISS mechanism. Among them is the role of phonons and electron-electron interactions.