Magnetic field insensitivity of magnetic domain wall velocity induced by electrical current in Co/Ni nanowire

Abstract

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Effect of spin transfer torque on domain wall motion regimes in [Co/Ni] superlattice wires

“…In Fig. 2, most of the data correspond to the transition between thermally activated and flow regimes [15], except in the high positive current case where the magnetic field and the current seem to have no effect on the DW motion [24]. We will treat this unusual regime later separately.…”

Interfacial current-induced torques in Pt/Co/GdOx

“…3, we use the same time-of-flight technique to investigate high-speed DW motion as DW dynamics approaches the flow regime, driven by combinations of field and current. 8 Following the procedure in Ref. 26, the DW velocity was extracted by measuring the DW arrival time at multiple positions along the strip (Fig.…”

“…Recent experiments show that DWs in materials with strong perpendicular magnetic anisotropy (PMA) exhibit lower critical currents for displacement than in-planemagnetized materials, and can be driven at velocities of up to several hundred m/s by electric current alone. [5][6][7][8][9] Together with the narrow width and thermal stability of DWs in high-PMA materials, the enhanced efficiency of current-driven DW motion makes out-of-plane magnetized thin films well suited to achieving competitive device performance.…”

Enhancement of spin orbit torques in a Tb-Co alloy magnetic wire by controlling its Tb composition

“…[1][2][3] A number of experimental investigations for the CIDWM have been carried out using magnetic wires. [4][5][6][7][8][9][10][11][12][13][14] Recently, the CIDWM in perpendicular magnetized wires with heavy metal layer has been reported. [15][16][17][18][19][20][21][22] In the case of magnetic wires without heavy metal layers, domain wall (DW) driving forces can be explained by spin transfer torques (STTs), 5 on the other hand, that in perpendicular magnetized wires with heavy metal layers can be explained by spin orbit torques (SOTs).…”