Fig. 5: Magnetization switching by magnon-dissipation-driven SOTs.
From: Magnetization switching driven by magnonic spin dissipation
a Schematic illustration of USMR measurement (top) and an optical microscope image of the device under test (bottom). The charge current pulse (IP) is applied along the x-axis, subsequently longitudinal voltage Vxx is measured using a harmonics measurement technique under an IAC. b Second-harmonic longitudinal resistance \(({R}_{xx}^{{{2}}{{\omega }}})\) as a function of the external field (Hext) applied along the y-axis under the charge current density JAC = 1.3 × 1011 A/m2. c \({R}_{xx}^{{2}{{\omega }}}\) as a function of the pulse current density (JP). Colored arrows represent the direction of current sweep. d Deterministic magnetization switching by a complex sequence of current pulses. The top and bottom panels display the sequence of the current pulses applied into the device and the corresponding \({R}_{xx}^{{2}{{\omega }}}\) measured after each pulse, respectively.
