Ultra-low switching current density in all-amorphous W-Hf / CoFeB / TaOx films

Katharina Fritz, Lukas Neumann, Markus Meinert

We study current-induced deterministic magnetization switching and domain wall motion via polar Kerr microscopy in all-amorphous W${}_{66}$Hf${}_{34}$/CoFeB/TaO${}_{\text{x}}$ with perpend…