Spin Filtering with Chiral Organic Molecules and Graphene: Towards Chiral Spintronics

电子是固体器件中的基本载流子，具有三种本征性质：质量、电荷和自旋。自旋是一种量子力学性质，但可以松散地想象为附加在电子上的微小的“本征”磁偶极矩。在传统的电子器件中，自旋磁矩在空间中沿随机方向定向，自旋在器件运行中不起重要作用。在新兴的“自旋电子学”领域，中心主题是使用具有明确自旋取向的“自旋极化”载流子来实现新的器件。自旋电子器件已经在最先进的硬盘驱动器和存储器中无处不在，目前正在共同努力实现基于自旋的信息处理。

Electrons, the fundamental charge carriers in solid-state devices, possess three intrinsic properties: mass, charge and spin. Spin is a quantum mechanical property, but can be loosely visualized as a tiny "intrinsic" magnetic dipole moment attached to an electron. In conventional electron devices, spin magnetic moments are oriented along random directions in space and spins play no significant role in device operation. In the emerging field of "spintronics" the central theme is to use "spin-polarized" carriers with well-defined spin orientations to realize novel devices. Spintronic devices are already ubiquitous in state-of-the-art hard drives and memories and a concerted effort is underway to realize spin-based information processing.