Write-error-rate of Spin-Transfer-Torque MRAM (Invited)
Daniel C. Worledge
IRPS 2023
We measure homodyne-detected ferromagnetic resonance (FMR) induced by the electric-field effect in a CoFeB/MgO/CoFeB magnetic tunnel junction (MTJ) with perpendicular magnetic easy axis under dc bias voltages up to 0.1 V. From the bias dependence of the resonant frequency, we find that the first order perpendicular magnetic anisotropy is modulated by the applied electric field, whereas the second order component is virtually independent of the electric field. The lineshapes of the FMR spectra are bias dependent, which are explained by the combination of electric-field effect and reflection of the bias voltage from the MTJ.
Daniel C. Worledge
IRPS 2023
Michael C. Gaidis, Eugene J. O'Sullivan, et al.
IBM J. Res. Dev
G. Hu, C. Safranski, et al.
IEDM 2022
Daniel C. Worledge
IMW 2022