Spiral structures in helicoidal magnets

Abstract

Structure and properties of two-dimensional spiral textures in helical ferromagnets have been studied. In these magnetic mediums have been predicted new types of periodical structures -spiral lattices.

Toggle-switch-like crossover between two types of isolated skyrmions within the conical phase of cubic helimagnets

“…By turn, the bending of stripe domains in garnet-ferrites reflects the geometry of easy anisotropy axes or their projections onto the basal plane. The structure of Archimede's spirals was also addressed numerically in chiral helimagnets within two host phases -spirals and SkL 84 . Thus in some sense, the considered 3D springs (Fig.…”

Field-driven metamorphoses of isolated skyrmions within the conical state of cubic helimagnets

“…By turn, the bending of stripe domains in garnet-ferrites reflects the geometry of easy anisotropy axes or their projections onto the basal plane. The structure of Archimedes's spirals was also addressed numerically in chiral helimagnets within two host phases-spirals and SkL [81]. Thus in some sense, the considered 3D springs (Fig.…”

B-field induced mixing between Langmuir waves and axions

“…The interaction of axions with a strong magnetic field has long been considered. Magnetic fields as large as 10 10 T can be obtained in pulsars [69][70][71], while the primordial magnetic field in the early Universe could have exceeded 10 14 T [72,73], both values exceeding the Schwinger value B c = m 2 /e = 4.4 × 10 9 T. At the first order in the axion-photon coupling constant g aγ , synchrotron emission of axions has been discussed in relation to neutron star luminosities, both with a tree-level axion-electron coupling [74,75] and through the mediation of a plasmon [76]. For example, Refs.…”