Chiral solitons in monoaxial chiral magnets in tilted magnetic field

Abstract

We show that the stability (existence/absence) and interaction (repulsion/attraction) of chiral solitons in monoaxial chiral magnets can be varied by tilting the direction of magnetic field. We, thereby, elucidate that the condensation of attractive chiral solitons causes the discontinuous phase transition predicted by a mean field calculation. Furthermore we theoretically demonstrate that the metastable field-polarized-state destabilizes through the surface instability, which is equivalent to the vanishing surface barrier for penetration of the solitons. We experimentally measure the magnetoresistance (MR) of micrometer-sized samples in the tilted fields in demagnetization-free configuration. We corroborate the scenario that hysteresis in MR is a sign for existence of the solitons, through agreement between our theory and experiments.

arXiv comment6+6 pages. the title is changed

References in corpus (14)

• Skyrmion Lattice in a Chiral Magnet
• Skyrmion confinement in ultrathin film nanostructures in the presence of Dzyaloshinskii-Moriya interaction
• Current-induced skyrmion dynamics in constricted geometries
• Surface twist instabilities and skyrmion states in chiral ferromagnets
• Nonreciprocal spin-wave channeling along textures driven by the Dzyaloshinskii-Moriya interaction
• Discrete helicoidal states in chiral magnetic thin films
• Edge instabilities and skyrmion creation in magnetic layers
• Three-dimensional chiral skyrmions with attractive interparticle interactions
• Field-Driven Evolution of Chiral Spin Textures in Thin Nanodisk of the Helimagnets
• Direct Observation of Attractive Skyrmions and Skyrmion Clusters in the Cubic Helimagnet Cu${}_2$OSeO${}_3$
• Magnetic Vortex with Skyrmionic Core in Thin Nanodisk of the Chiral Magnets
• Crossover of skyrmion and helical modulations in noncentrosymmetric ferromagnets
• Incommensurate--commensurate transitions in the mono-axial chiral helimagnet driven by the magnetic field
• Nucleation, instability, and discontinuous phase transitions in monoaxial helimagnets with oblique fields

Cited by in corpus (6)

• Canted antiferromagnetic order in the monoaxial chiral magnets V${}_{1/3}$TaS${}_2$ and V${}_{1/3}$NbS${}_2$
• Thermal fluctuations in the conical state of monoaxial helimagnets
• Instabilities in monoaxial chiral magnets under a tilted magnetic field
• Emergent electric field from magnetic resonances in a one-dimensional chiral magnet
• Skyrmions in an oblique field: A path to novel binary and quaternary memory
• Soliton penetration from edges in a monoaxial chiral magnet