Ultrafast spin‐to‐charge conversion at the surface of topological insulator thin films

• Main Authors: Wang, Xinbo, Cheng, Liang, Zhu, Dapeng, Wu, Yang, Chen, Mengji, Wang, Yi, Zhao, Daming, Boothroyd, Chris Brian, Lam, Yeng Ming, Zhu, Jian-Xin, Battiato, Marco, Song, Justin Chien Wen, Yang, Hyunsoo, Chia, Elbert Ee Min
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Science::Physics; Spin‐to‐charge Conversion; Spintronics
• Online Access: https://hdl.handle.net/10356/138563
• Institution: Nanyang Technological University

Strong spin–orbit coupling, resulting in the formation of spin‐momentum‐locked surface states, endows topological insulators with superior spin‐to‐charge conversion characteristics, though the dynamics that govern it have remained elusive. Here, an all‐optical method is presented, which enables unpr...