30Bl - 73Bo6

Hansen, P.; Enke, K.; Winkler, G.

doi:10.1007/10201632_97

Cited by 1 publication

(1 citation statement)

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“…, where α 1 , α 2 , α 3 are the magnetization direction cosines referred to the cubic axes [100], [010], and [001]. The anisotropy constant is negative, promoting 111 easy secondary axes as most commonly found in (cubic) garnets [6]. We first determine the wall characteristics for a non-symmetrical orientation of x, the current propagation axis, namely ξ = 15 • , an orientation half-way between the [110] and the [211] orientations.…”

Section: Cubic Case -We Now Add To the Uniaxial Anisotropy An Ancilla...mentioning

confidence: 99%

Spin-orbit torque-driven domain wall motion in the absence of Dzyaloshinskii-Moriya interactions

Thiaville,

Miltat

2024

EPL

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The ﬁne structure and dynamics of magnetic domain walls in ultrathin ﬁlms with perpendicular magnetization, in presence of a secondary anisotropy, is analysed owing to micro-magnetics. Two cases are considered, a cubic anisotropy typical for (111) oriented garnet epitaxial ﬁlms, and an orthorhombic anisotropy as found in e.g. Co/W(110) ﬁlms. The statics is solved ﬁrst, showing that, in general, domain walls are not of the pure Bloch type. The dynamics under the spin Hall eﬀect induced by a current ﬂowing in an adjacent layer is then monitored. Finite and non-negligible domain wall velocities are predicted in both cases, in the absence of Dzyaloshinskii-Moriya interactions, with distinct behaviours regarding the current density and its orientation with respect to the secondary anisotropy axes. The relevance of these results to recent reports of current driven domain wall dynamics in insulating ultrathin garnet ﬁlms, capped with platinum, is discussed.

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Section: Cubic Case -We Now Add To the Uniaxial Anisotropy An Ancilla...mentioning

confidence: 99%