Bloch wall dynamics in ultrathin ferromagnetic films

Tarasenko, S. V.; Stankiewicz, A.; Tarasenko, V. V.; Ferré, J.

doi:10.1016/s0304-8853(98)00230-3

Cited by 66 publications

(59 citation statements)

References 2 publications

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“…The shape anisotropy field for Néel DWs [39] is H k ≈ M s t ln(2)/π . Here = A/K u,eff is the DW width, and K u,eff is the effective perpendicular anisotropy energy density.…”

Section: A Weak Dmi Case-ta/cofe/mgomentioning

confidence: 99%

Spin Hall torque magnetometry of Dzyaloshinskii domain walls

et al. 2014

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Current-induced domain wall motion in the presence of the Dzyaloshinskii-Moriya interaction (DMI) is experimentally and theoretically investigated in heavy-metal/ferromagnet bilayers. The angular dependence of the current-induced torque and the magnetization structure of Dzyaloshinskii domain walls are described and quantified simultaneously in the presence of in-plane fields. We show that the DMI strength depends strongly on the heavy metal, varying by a factor of 20 between Ta and Pa, and that strong DMI leads to wall distortions not seen in conventional materials. These findings provide essential insights for understanding and exploiting chiral magnetism for emerging spintronics applications.

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“…The shape anisotropy field for Néel DWs [39] is H k ≈ M s t ln(2)/π . Here = A/K u,eff is the DW width, and K u,eff is the effective perpendicular anisotropy energy density.…”

Section: A Weak Dmi Case-ta/cofe/mgomentioning

confidence: 99%

Spin Hall torque magnetometry of Dzyaloshinskii domain walls

et al. 2014

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“…The energy of a pure Bloch wall is γ = 4 √ AK eff , δ = √ A/K eff relates to the wall width, and the domain-wall shape anisotropy [6,24] …”

Section: B Dzyaloshinskii-moriya Energymentioning

confidence: 99%

Magnetic properties, domain-wall creep motion, and the Dzyaloshinskii-Moriya interaction in Pt/Co/Ir thin films

et al. 2018

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We study the magnetic properties of perpendicularly magnetized Pt/Co/Ir thin films and investigate the domain-wall creep method of determining the interfacial Dzyaloshinskii-Moriya (DM) interaction in ultrathin films. Measurements of the Co layer thickness dependence of saturation magnetization, perpendicular magnetic anisotropy, and symmetric and antisymmetric (i.e., DM) exchange energies in Pt/Co/Ir thin films have been made to determine the relationship between these properties. We discuss the measurement of the DM interaction by the expansion of a reverse domain in the domain-wall creep regime. We show how the creep parameters behave as a function of in-plane bias field and discuss the effects of domain-wall roughness on the measurement of the DM interaction by domain expansion. Whereas modifications to the creep law with DM field and in-plane bias fields have taken into account changes in the energy barrier scaling parameter α, we find that both α and the velocity scaling parameter v 0 change as a function of in-plane bias field.

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“…In the framework of the 1D-model (1DM), the DW dynamics is described in terms of the DW position X and the DW angle  by the following equations [9,33] (1) (2)/( ) being the magnetostatic factor [34].…”

Section: Dmi and She Extraction By 1d-modellingmentioning

confidence: 99%

“…Finally, the thermal field H th (t) describes the effect of thermal fluctuations, and it is assumed to be a random Gaussian-distributed stochastic process with zero mean value ( ), uncorrelated in time ( ), where K B is the Boltzmann constant and T the temperature [34]. The 1DM results were computed at T=300 K. Eqs.…”

Section: Dmi and She Extraction By 1d-modellingmentioning

confidence: 99%