Spin current generator based on topological insulator coupled to ferromagnetic insulators
M. J. Ma,
M. B. A. Jalil,
S. G. Tan,
Y. Li,
Z. B. Siu
Affiliations
M. J. Ma
Computational Nanoelectronics and Nano-device Laboratory, Electrical and Computer Engineering Department, National University of Singapore, 4 Engineering Drive 3, Singapore 117576, Singapore
M. B. A. Jalil
Computational Nanoelectronics and Nano-device Laboratory, Electrical and Computer Engineering Department, National University of Singapore, 4 Engineering Drive 3, Singapore 117576, Singapore
S. G. Tan
Data Storage Institute, A *STAR (Agency of Science, Technology and Research), DSI Building, 5 Engineering Drive 1, Singapore 117608, Singapore
Y. Li
Computational Nanoelectronics and Nano-device Laboratory, Electrical and Computer Engineering Department, National University of Singapore, 4 Engineering Drive 3, Singapore 117576, Singapore
Z. B. Siu
Data Storage Institute, A *STAR (Agency of Science, Technology and Research), DSI Building, 5 Engineering Drive 1, Singapore 117608, Singapore
We propose a spin current generator based on a topological insulator current-in-plane spin valve, consisting of a 3D topological insulator sandwiched between two ferromagnetic insulator layers. The “on” and “off” states of the spin current can be toggled by switching the magnetization configuration of the two ferromagnetic insulator layers which are coupled to the surface states of the topological insulator.
