Interfacial Dzyaloshinskii-Moriya interaction in epitaxial W/Co/Pt multilayers

Abstract

Dzyaloshinskii-Moriya interaction (DMI) manifesting in asymmetric layered ferromagnetic films gives rise to non-colinear spin structures stabilizing magnetization configurations with nontrivial topology. In this work magnetization reversal, domain structure, and strength of DMI are related with the structure of W/Co/Pt multilayers grown by molecular beam epitaxy. Applied growth method enables fabrication of layered systems with higher crystalline quality than commonly applied sputtering techniques. As a result, a high value of D coefficient was determined from the aligned magnetic domain stripe structure, substantially exceeding 2 mJ/m2. The highest value of DMI value D${}_{eff}$ = 2.64mj/m2 and strength of surface DMI parameter DS = 1.83pJ/m for N=10 has been observed. Experimental results coincide precisely with those obtained from structure based micromagnetic modelling and density functional theory calculations performed for well-defined layered stacks. This high value of DMI strength originates from dominating contributions of the interfacial atomic Co layers and additive character from both interface types.

References in corpus (23)

• Skyrmion Lattice in a Chiral Magnet
• Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
• Current-driven dynamics of chiral ferromagnetic domain walls
• Observation of room temperature magnetic skyrmions and their current-driven dynamics in ultrathin Co films
• Direct Observation of the Skyrmion Hall Effect
• Additive interfacial chiral interaction in multilayers for stabilization of small individual skyrmion at room temperature
• Skyrmions at room temperature : From magnetic thin films to magnetic multilayers
• Room temperature chiral magnetic skyrmion in ultrathin magnetic nanostructures
• Anatomy of Dzyaloshinskii-Moriya Interaction at Co/Pt Interfaces
• Spectroscopic confirmation of linear relation between Heisenberg- and interfacial Dzyaloshinskii-Moriya-exchange in polycrystalline metal films
• Room-temperature current-induced generation and motion of sub-100nm skyrmions
• Hybrid chiral domain walls and skyrmions in magnetic multilayers
• Hund's rule-driven Dzyaloshinskii-Moriya interaction at 3d-5d interfaces
• Scaling of Dzyaloshinskii Moriya interaction at heavy metal and ferromagnetic metal interfaces
• Effect of interfacial intermixing on the Dzyaloshinskii-Moriya interaction in Pt/Co/Pt
• Probing the Dzyaloshinskii-Moriya interaction in CoFeB ultrathin films using domain wall creep and Brillouin light spectroscopy
• Anisotropic Dzyaloshinskii-Moriya Interaction in ultra-thin epitaxial Au/Co/W(110)
• Domain Wall Motion and Interfacial Dzyaloshinskii-Moriya Interactions in Pt/Co/Ir$(t_{\mathrm{Ir}})$/Ta Multilayers
• RKKY interaction on the surface of three-dimensional Dirac semimetals
• Magnetic properties and heat capacity of the three-dimensional frustrated S=1/2 antiferromagnet PbCuTe2O6
• Extraction of Dzyaloshinksii-Moriya interaction from propagating spin waves validated
• Mapping different skyrmion phases in double wedges of Ta/FeCoB(tFeCoB)/Ta(tTa)Ox
• Thermodynamic Anomaly Above the Superconducting Critical Temperature in the Quasi One-Dimensional Superconductor Ta${}_4$Pd${}_3$Te${}_{16}$

Cited by in corpus (3)

• Room-Temperature Magnetic Skyrmions in Pt/Co/Cu Multilayers
• Huge Dzyaloshinskii-Moriya interactions in Re_Co_Pt thin films
• Staggered Dzyaloshinskii-Moriya and canting angle in centrosymmetric altermagnetic and ferromagnetic phases: influence on the anomalous Hall effect and Weyl points