Skyrmion magnetic structure of an ordered FePt monolayer deposited on Pt(111)

Abstract

The effect of the Dzyaloshinsky-Moriya interaction on the magnetic structure of an ordered FePt monolayer deposited on Pt (111) surface has been investigated. In the ground state, the pronounced anisotropic geometry of the FePt layer with alternating Fe and Pt chains gives rise to a helimagnetic structure with a strong difference in the helicity period along the chains and perpendicular to them. In the presence of an external magnetic field, the region of stable Skyrmion magnetic structures in the $B-T$ phase diagram has been demonstrated via Monte Carlo simulations using the parameters obtained within first-principles electronic structure calculations. The present study demonstrates clearly that the ratio of the exchange coupling parameters J/D for a deposited magnetic film - being of central importance for the formation of Skyrmions - can be manipulated by growing an overlayer of 2-dimensional (2D) compounds with the atoms carrying spontaneous magnetic moments separated by the atoms of non-magnetic elements.

References in corpus (6)

• Spontaneous Skyrmion Ground States in Magnetic Metals
• Emergent electrodynamics of skyrmions in a chiral magnet
• Observation of magnetic excitations of skyrmion crystal in a helimagnetic insulator
• Robust formation of skyrmions and topological Hall effect in epitaxial thin films of MnSi
• Skyrmion Lattice in Two-Dimensional Chiral Magnet
• Trends in the magnetic properties of Fe, Co and Ni clusters and monolayers on Ir(111), Pt(111) and Au(111)

Cited by in corpus (9)

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• Complex magnetic phase diagram and skyrmion lifetime in an ultrathin film from atomistic simulations
• Extension of the standard Heisenberg Hamiltonian to multispin exchange interactions
• Spin-polarized scanning tunneling microscopy characteristics of skyrmionic spin structures exhibiting various topologies
• Band filling effects on the emergence of magnetic skyrmions: Pd/Fe and Pd/Co bilayers on Ir(111)
• A model for individual quantal nano-skyrmions
• Composition-dependent magnetic response properties of Mn${}_{1-x}$Fe${}_x$Ge alloys
• Dzyaloshinskii-Moriya interactions and magnetic texture in the Fe films deposited on transition-metal dichalcogenides