Spin Transport in the Presence of Rashba Interaction

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2008,（8）
• 页码范围: 3001-3004
• 页数: 4页
• 语种: 英文

摘要

A Gaussian type spin-polarized electronic wave packet is constructed to investigate the spin transport behaviour in an infinite two-dimensional electron gas system with Rashba spin-orbit (SO) interaction by solving the Schrodinger equation exactly. In the presence of Rashba SO interaction, the spin-dependent force induces a momentum dependent splitting of the two spin directions, the average spin current indicates the corresponding spin accumulation clearly. Furthermore, the coherence of the injected spin-polarized wave packet, as well as the transverse force, decays during the motion in the Rashba SO regime.