Title :
Spin-torque FMR and large rectification sensitivity in Fe-rich CoFeB-MgO magnetic tunnel junctions
Author :
Suzuki, Yuya ; Ishibashi, Shojiro ; Kubota, Hajime ; Nozaki, Takayuki ; Fukushima, Akio ; Yuasa, Shinji ; Maehara, Hiroaki ; Tsunekawa, Koichi ; Djayaprawira, D.D.
Author_Institution :
Grad. Sch. of Eng. Sci., Osaka Univ., Toyonaka, Japan
Abstract :
Spin-torque FMR and large rectification sensitivity in Fe-rich CoFeB-MgO magnetic tunnel junctions is reported. Tunnel magnetoresistance effect and spin-transfer torque provide various nonlinear effects. The precession angle can be significantly large if the frequency of the applied RF current matches to that of the ferromagnetic resonance (FMR) in the free layer.
Keywords :
boron alloys; cobalt alloys; ferromagnetic resonance; iron alloys; magnesium compounds; magnetic multilayers; rectification; tunnelling magnetoresistance; CoFeB-MgO-CoFeB; RF current; ferromagnetic resonance; magnetic tunnel junctions; nonlinear effects; rectification sensitivity; spin-torque FMR; tunnel magnetoresistance;
Conference_Titel :
Vacuum Electron Sources Conference and Nanocarbon (IVESC), 2010 8th International
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-6645-0
DOI :
10.1109/IVESC.2010.5644344
