Magnetic solitons and magnetic phase diagram of the hexagonal chiral crystal 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>CrNb</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">S</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math>
 in oblique magnetic fields

Yonemura, Jun Ichiro; Shimamoto, Y.; Kida, Takanori; Yoshizawa, Daichi; Kousaka, Yusuke; Nishihara, Sadafumi; Gonçalves, F. J. T.; Akimitsu, Jun; Inoue, Katsuya; Hagiwara, Masayuki; Togawa, Yoshihiko

doi:10.1103/physrevb.96.184423

Cited by 52 publications

(33 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This sample size dependent hysteretic behaviour is similar to that observed in magnetoresistance and magnetic torque measurements on micronsized samples 12,13 and suggests there is a significant energy barrier to initial soliton nucleation. This is consistent with recent modelling efforts which predict that the transition from a supercooled F-FM to CSL phase occurs in small samples by the creation and penetration of solitons from the edge of the sample, 15 and that a barrier of magnitude (4/π 2 ≈ 0.4)H c is formed by twists of the magnetisation at the surface of the sample from which they enter.…”

Section: Hysteretic Chiral Soliton Lattice Dislocation Populationssupporting

confidence: 77%

Order and disorder in the magnetization of the chiral crystal CrNb3S6

et al. 2019

Self Cite

View full text Add to dashboard Cite

Competing magnetic anisotropies in chiral crystals with Dzyaloshinskii Moriya exchange interactions can give rise to non-trivial chiral topological magnetisation configurations with new and interesting properties. One such configuration is the magnetic soliton, where the moment continuously rotates about an axis. This magnetic system can be considered to be one dimensional and, because of this, it supports a macroscale coherent magnetisation, giving rise to a tunable chiral soliton lattice (CSL) that is of potential use in a number of applications in nanomagnetism and spintronics. In this work we characterise the transitions between the forced-ferromagnetic (F-FM) phase and the CSL one in CrNb 3 S 6 using differential phase contrast imaging in a scanning transmission electron microscope, conventional Fresnel imaging, ferro-magnetic resonance spectroscopy, and mean-field modelling. We find that the formation and movement of dislocations mediate the formation of CSL and F-FM regions and that these strongly influence the highly hysteretic static and dynamic properties of the system. Sample size and morphology can be used to tailor the properties of the system and, with the application of magnetic field, to locate and stabalise normally unstable dislocations and modify their dimensions and magnetic configurations in ways beyond that predicted to occur in uniform films. KeywordsChiral soliton lattice, CrNb 3 S 6 , dislocation, differential phase contrast, transmission electron microscopy, Lorentz microscopy, Fresnel microscopy, ferromagnetic resonance spectroscopy 1 arXiv:1903.09519v1 [cond-mat.mtrl-sci]

show abstract

Section: Hysteretic Chiral Soliton Lattice Dislocation Populationssupporting

confidence: 77%

Order and disorder in the magnetization of the chiral crystal CrNb3S6

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…When an out-of-plane magnetic field B y is applied the chiral soliton lattice is destabilized at the perpendicular critical field B yc = 230 mT and the system goes to a uniform magnetization state in the out-of-plane direction 4 . Instead, if a magnetic field is applied in the z direction, a conical state is formed below B zc ≈ 10B yc = 2.3 T , which is the parallel critical field 24 . Theoretically, when measuring magnetic fields in units of B 0 = D 2 /(2AM S ) , the perpendicular and parallel critical fields are h yc = π 2 /16 and h zc = 1 − κ , with κ = 4AK/D 2 .…”

mentioning

confidence: 99%

Dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets

Laliena

Bustingorry

Campo

2020

Sci Rep

View full text Add to dashboard Cite

Chiral solitons are one dimensional localized magnetic structures that are metastable in some ferromagnetic systems with Dzyaloshinskii–Moriya interactions and/or uniaxial magnetic anisotropy. Though topological textures in general provide a very interesting playground for new spintronics phenomena, how to properly create and control single chiral solitons is still unclear. We show here that chiral solitons in monoaxial helimagnets, characterized by a uniaxial Dzyaloshinskii–Moriya interaction, can be stabilized with external magnetic fields. Once created, the soliton moves steadily in response to a polarized electric current, provided the induced spin-transfer torque has a dissipative (nonadiabatic) component. The structure of the soliton depends on the applied current density in such a way that steady motion exists only if the applied current density is lower than a critical value, beyond which the soliton is no longer stable.

show abstract

“…Recently, interest in magnetic CSLs has been increased due to the theoretical predictions of driving magnetic kinks by electric current and crossed magnetic fields [6,7], and the nontrivial dynamics of the solitons in the GHz frequency range [8,9]. Following the theoretical conceptions, several experimental works have unambiguously demonstrated the formation and manipulation of a CSL in a prototypical uniaxial chiral helimagnet CrNb 3 S 6 [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Metastable solitonic states in the strained itinerant helimagnet FeGe

et al. 2020

View full text Add to dashboard Cite

Tensile strain is a promising tool for the creation and manipulation of magnetic solitonic textures in chiral helimagnets via tunable control of magnetic anisotropy and Dzyaloshinskii-Moriya interaction. Here, by using in situ resonant small-angle x-ray scattering, we demonstrate that skyrmion and chiral soliton lattices can be achieved as metastable states in FeGe lamella as distinct states under tensile strain and magnetic fields in various orientations with respect to the deformation. The small-angle scattering data can be well accounted for in the framework of the analytical model for a soliton lattice. By using the experimental results and analytical theory, the unwinding of metastable skyrmions in a perpendicular magnetic field as shown by a small-angle scattering experiment was analyzed via micromagnetic simulation.

show abstract

Magnetic solitons and magnetic phase diagram of the hexagonal chiral crystal CrNb3S6 in oblique magnetic fields

Cited by 52 publications

References 42 publications

Order and disorder in the magnetization of the chiral crystal CrNb3S6

Order and disorder in the magnetization of the chiral crystal CrNb3S6

Dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets

Metastable solitonic states in the strained itinerant helimagnet FeGe

Contact Info

Product

Resources

About