Tuning magnetic chirality by dipolar interactions

Abstract

Chiral magnetism has gained enormous interest in recent years because of the anticipated wealth of applications in nanoelectronics. The demonstrated stabilization of chiral magnetic domain walls and skyrmions has been attributed to the actively investigated Dzyaloshinskii-Moriya interaction. Recently, however, predictions were made that suggest dipolar interactions can also stabilize chiral domain walls and skyrmions, but direct experimental evidence has been lacking. Here we show that dipolar interactions can indeed stabilize chiral domain walls by directly imaging the magnetic domain walls using scanning electron microscopy with polarization analysis. We further show that the competition between the Dzyaloshinskii-Moriya and dipolar interactions can reverse the domain-wall chirality. Finally, we suggest that this competition can be tailored by a Ruderman-Kittel-Kasuya-Yosida interaction. Our work therefore reveals that dipolar interactions play a key role in the stabilization of chiral spin textures. This insight will open up new routes towards balancing interactions for the stabilization of chiral magnetism.

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Cited by in corpus (14)

• Chiral Spin Spirals at the Surface of the van der Waals Ferromagnet Fe${}_3$GeTe${}_2$
• Magnetic chirality controlled by the interlayer exchange interaction
• Stabilizing chiral spin-structures via an alternating Dzyaloshinskii-Moriya interaction
• Intrinsic mixed Bloch-Néel character and chirality switch of skyrmions in asymmetric epitaxial trilayer
• Effective interfacial Dzyaloshinskii-Moriya interaction and skyrmion stabilization in ferromagnet/paramagnet and ferromagnet/superconductor hybrid systems
• Tailoring Zero-Field Magnetic Skyrmions in Chiral Multilayers by a Duet of Interlayer Exchange Couplings
• Tuning the dynamics of magnetic droplet solitons using dipolar interactions
• Shock-wave-like emission of spin waves induced by interfacial Dzyaloshinskii-Moriya interaction
• Chiral magnetic phases in Moire bilayers of magnetic dipoles
• Magnetic Moiré Systems: a review
• Magnetic Bloch-point hopping in multilayer skyrmions and associated emergent electromagnetic signatures
• Skyrmion stacking in stray field-coupled ultrathin ferromagnetic multilayers
• Chiral and Clock phases in Twisted Dipolar Clusters
• Enhancing sensitivity in atomic force microscopy for planar tip-on-chip probes