Topological-chiral magnetic interactions in ultrathin films at surfaces

Abstract

We demonstrate that topological-chiral magnetic interactions can play a key role for magnetic ground states in ultrathin films at surfaces. Based on density functional theory we show that significant chiral-chiral interactions occur in hexagonal Mn monolayers due to large topological orbital moments which interact with the emergent magnetic field. Due to the competition with higher-order exchange interactions superposition states of spin spirals such as the 2Q state or a distorted 3Q state arise. Simulations of spin-polarized scanning tunneling microscopy images suggest that the distorted 3Q state could be the magnetic ground state of a Mn monolayer on Re(0001).

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Cited by in corpus (8)

• Tetrahedral triple-Q magnetic ordering and large spontaneous Hall conductivity in the metallic triangular antiferromagnet Co1/3TaS2
• Nano-scale collinear multi-Q states driven by higher-order interactions
• Coupling of the triple-Q state to the atomic lattice by anisotropic symmetric exchange
• Antiferromagnetic order of topological orbital moments in atomic-scale skyrmion lattices
• Tunable chiral and nematic states in the triple-Q antiferromagnet Co${}_{1/3}$TaS${}_2$
• Strain-driven domain wall network with chiral junctions in an antiferromagnet
• A new skyrmion topological transition driven by higher-order exchange interactions in Janus MnSeTe
• Entropy-driven phase transition in a non-collinear antiferromagnet due to higher-order exchange interactions