电场驱动下具有自旋-轨道相互作用的长寿命自旋激发
Electric-field driven long-lived spin excitations on a cylindrical surface with spin-orbit interaction
摘要：
本文从量子动力学方程出发，导出了圆柱表面上二维电子气的自旋-电荷漂移-扩散耦合方程。除了Rashba和Dresselhaus自旋轨道相互作用，弹性散射杂质，和一个恒定的电场考虑。从漂移扩散方程的解决方案，一个长寿命的自旋激发被确定为自旋耦合到Rashba项在一个给定的半径的圆柱。电场驱动的弱阻尼自旋波表现在磁化分量中，并且具有非弹道自旋器件应用的潜力。
英文摘要：
Based on quantum-kinetic equations, coupled spin-charge drift-diffusion equations are derived for a two-dimensional electron gas on a cylindrical surface. Besides the Rashba and Dresselhaus spin-orbit interaction, the elastic scattering on impurities, and a constant electric field are taken into account. From the solution of the drift-diffusion equations, a long-lived spin excitation is identified for spins coupled to the Rashba term on a cylinder with a given radius. The electric-field driven weakly damped spin waves are manifest in the components of the magnetization and have the potential for non-ballistic spin-device applications.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
