标题： 手性诱导自旋选择中的自旋翻转散射使用里卡蒂方程 显示英文标题

标题： Spin-flip scattering in chiral induced spin selectivity using the Riccati equation

摘要： 手性诱导自旋选择性（CISS）在螺旋分子层中在新兴的自旋电子学领域引起了广泛关注，因为该效应使得在环境条件下能够实现自旋过滤器件。 已经进行了若干理论研究以在微观尺度上解释这一效应，但该效应的起源仍存在争议。 特别是电子输运过程中自旋翻转散射的作用仍然是一个开放问题。 在本研究中，我们通过包含自旋依赖性损耗和自旋翻转散射的速率方程描述电子和自旋输运。 我们将问题简化为求解黎卡提微分方程以获得解析解。 结果允许根据实验数据或量子力学模型确定和解释基于CISS的自旋过滤器的强度和可扩展性。 对于迄今为止实验研究的螺旋系统，结果表明自旋翻转散射起次要作用。 显示英文摘要

摘要： The chiral induced spin selectivity (CISS) in layers of helical molecules gained considerable attention in the emerging field of spintronics, because the effect enables spin-filter devices under ambient conditions. Several theoretical studies have been carried out to explain this effect on a microscopic scale, but the origin of the effect is still controversial. In particular the role of spin-flip scattering during electron transport is an open issue. In this study we describe the electron and spin transport by rate equations including spin-dependent losses and spin-flip scattering. We reduce the problem to the solution of the Riccati differential equation to obtain analytical solutions. The results allow to determine and interpret the strength and scalability of CISS based spin-filters from experimental data or quantum mechanical models. For the helical systems studied experimentally so far it turns out that spin-flip scattering plays a minor role.