Pinning of Domain Walls in thin Ferromagnetic Films

Abstract

We present a quantitative investigation of magnetic domain wall pinning in thin magnets with perpendicular anisotropy. A self-consistent description exploiting the universal features of the depinning and thermally activated sub-threshold creep regimes observed in the field driven domain wall velocity, is used to determine the effective pinning parameters controlling the domain wall dynamics: the effective height of pinning barriers, the depinning threshold, and the velocity at depinning. Within this framework, the analysis of results published in the literature allows for a quantitative comparison of pinning properties for a set of magnetic materials in a wide temperature range. On the basis of scaling arguments, the microscopic parameters controlling the pinning: the correlation length of pinning, the collectively pinned domain wall length (Larkin length) and the strength of pinning disorder, are estimated from the effective pinning and the micromagnetic parameters. The analysis of thermal effects reveals a crossover between different pinning length scales and strengths at low reduced temperature.

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Cited by in corpus (27)

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• Interplay between spin proximity effect and charge-dependent exciton dynamics in MoSe${}_2$ / CrBr${}_3$ van der Waals heterostructures
• Domain wall pinning and hard magnetic phase in Co-doped bulk single crystalline Fe3GeTe2
• Domain Wall Motion and Interfacial Dzyaloshinskii-Moriya Interactions in Pt/Co/Ir$(t_{\mathrm{Ir}})$/Ta Multilayers
• Creep motion of elastic interfaces driven in a disordered landscape
• Field- and current-driven magnetic domain-wall inverter and diode
• Magnetic properties and field-driven dynamics of chiral domain walls in epitaxial Pt/Co/Au${}_x$Pt${}_{1-x}$ trilayers
• Common universal behaviors of magnetic domain walls driven by spin-polarized electrical current and magnetic field
• Creep of Chiral Domain Walls
• Strength and length-scale of the interaction between domain walls and pinning disorder in thin ferromagnetic films
• Universal Critical Exponents of the Magnetic Domain Wall Depinning Transition
• Universal dimensional crossover of domain wall dynamics in ferromagnetic films
• Domain-wall roughness in GdFeCo thin films: crossover length scales and roughness exponents
• Control of field- and current-driven magnetic domain wall motion by exchange-bias in Cr2O3/Co/Pt trilayers
• Ultra-low switching current density in all-amorphous W-Hf / CoFeB / TaOx films
• Tuning the dynamics of chiral domain walls of ferrimagnetic films with the magneto-ionic effect
• Tuning Ginzburg-Landau theory to quantitatively study thin ferromagnetic materials
• Competing magnetic interactions and magnetocaloric effect in Ho${}_5$Sn${}_3$
• Crack propagation by activated avalanches during creep and fatigue from elastic interface theory
• Spin orbit torque-driven motion of quasi-Bloch domain wall in perpendicularly magnetized W/CoFeB/MgO structure
• Roughness and critical force for depinning at 3-loop order
• Curvature-driven AC-assisted creep dynamics of magnetic domain walls
• Hybrid micromagnetic and atomistic modeling of magnetization dynamics induced by engineered defects
• Depinning free of the elastic approximation
• Effect of Ir growth pressure on the domain wall dynamics in Ta/Pt/Co/Ir/Ta stacks
• Coherent Microwave Driving of Domain Wall Depinning in a Ferrimagnetic Garnet
• Field-dependent roughness of moving domain walls in a Pt/Co/Pt magnetic thin film