Crossover of skyrmion and helical modulations in noncentrosymmetric ferromagnets

Abstract

The coupling between angular (twisting) and longitudinal modulations arising near the ordering temperature of noncentrosymmetric ferromagnets strongly influences the structure of skyrmion states and their evolution in an applied magnetic field. In the precursor states of cubic helimagnets, a continuous transformation of skyrmion lattices into the saturated state is replaced by the first-order processes accompanied by the formation of multidomain states. Recently the effects imposed by dominant longitudinal modulations have been reported in bulk MnSi and FeGe. Similar phenomena can be observed in the precursor regions of cubic helimagnet epilayers and in easy-plane chiral ferromagnets (e.g. in the hexagonal helimagnet CrNb3S6).

References in corpus (10)

• Spontaneous Skyrmion Ground States in Magnetic Metals
• Surface twist instabilities and skyrmion states in chiral ferromagnets
• Chiral surface twists and skyrmion stability in nanolayers of cubic helimagnets
• Three-dimensional chiral skyrmions with attractive interparticle interactions
• Magnetic Fluctuations, Precursor Phenomena and Phase Transition in MnSi under Magnetic Field
• Understanding the H-T phase diagram of the mono-axial helimagnet
• Scaling Study and Thermodynamic Properties of the cubic Helimagnet FeGe
• Nucleation, instability, and discontinuous phase transitions in monoaxial helimagnets with oblique fields
• Topological spin dynamics in cubic FeGe near room temperature
• Multiple magnetic states within the A-phase determined by field-orientation dependence of Mn0.9Fe0.1Si

Cited by in corpus (11)

• Physical foundations and basic properties of magnetic skyrmions
• Skyrmion-Skyrmion Interaction in a Magnetic Film
• Mean-field approach for skyrmion lattice in hexagonal frustrated antiferromagnets
• Colossal topological Hall effect at the transition between isolated and lattice-phase interfacial skyrmions
• Chiral solitons in monoaxial chiral magnets in tilted magnetic field
• Skyrmions and spirals in MnSi under hydrostatic pressure
• Stability of in-plane and out-of-plane chiral skyrmions in epitaxial MnSi(111)/Si(111) thin films: surface twists versus easy-plane anisotropy
• Instabilities in monoaxial chiral magnets under a tilted magnetic field
• Wave-nature and metastability of emergent crystals in chiral magnets
• Evolution of Helimagnetic Correlations when approaching the Quantum Critical Point of Mn${}_{1-x}$Fe${}_x$Si
• Topological transition and emergent elasticity of dislocation in skyrmion lattice: Beyond Kittel's magnetic-polar analogy