Enhanced Spintronic Terahertz Emission in W/CoFeB Heterostructures Through Annealing Effect

Yang Gao,Yanbin He,Chandan Pandey,Tianxiao Nie,Chun Wang,Deyin Kong,Bo Wang,Lianggong Wen,Cunjun Ruan,Jungang Miao,Li Wang,Yutong Li,Weisheng Zhao,Xiaojun Wu

Enhanced Spintronic Terahertz Emission in W/CoFeB Heterostructures Through Annealing Effect

2019

Yang Gao
Yanbin He
Chandan Pandey
Tianxiao Nie
Chun Wang
Deyin Kong
Bo Wang
Lianggong Wen
Cunjun Ruan
Jungang Miao
Li Wang
Yutong Li
Weisheng Zhao
Xiaojun Wu

Three times enhancement of terahertz emission in W(2.2 nm)/CoFeB(2.0 nm) heterostructures through annealing are experimentally demonstrated. The possible mechanisms are qualitatively discussed and further verified in experiments.

Keywords:

Optoelectronics
Spintronics
Annealing (metallurgy)
Terahertz radiation
Heterojunction
Physics
Laser
ultrafast optics
Conductivity

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