Fig. 3: Type-x and type-y SOT switching behaviors in the SRT1/Mg/CFB samples deposited on (100) MgO single crystal substrates. | Nature Communications

Fig. 3: Type-x and type-y SOT switching behaviors in the SRT1/Mg/CFB samples deposited on (100) MgO single crystal substrates.

From: Field-free spin-orbit torque switching assisted by in-plane unconventional spin torque in ultrathin [Pt/Co]N

Fig. 3

a A schematic depiction of type-x SOT switching with spin polarizations of σx and σy. The red spheres represent electrons, green (purple) arrows represent spin magnetic moment along y-direction (x-direction). Jc, Js, and M represent the charge current density, spin current density, and magnetization, respectively. b, c Field-switching and field-free current-switching in type-x geometry based on DPHE measurement with magnetic anisotropy along x direction. d A schematic depiction of type-y SOT switching with spin polarizations of σx and σy. e, f Field-switching and field-free current-switching in type-y geometry based on DPHE measurement with magnetic anisotropy along y direction. SRT1/Mg/CFB is the abbreviation of the sample stack SRT1/Mg(2)/CoFeB(2.5)/MgO(1.5)/Ta(2).

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