Direct Observation of Cycloidal Spin Modulation and Field-induced Transition in Néel-type Skyrmion-hosting VOSe2O5

@article{Kurumaji2019DirectOO,
  title={Direct Observation of Cycloidal Spin Modulation and Field-induced Transition in N{\'e}el-type Skyrmion-hosting VOSe2O5},
  author={Takashi Kurumaji and Taro Nakajima and Artem Feoktystov and Earl Babcock and Zahir Salhi and Victor Ukleev and Taka-hisa Arima and Kazuhisa Kakurai and Yoshinori Tokura},
  journal={arXiv: Strongly Correlated Electrons},
  year={2019}
}
We investigate the spin rotational structure of magnetic skyrmions in a tetragonal polar magnet VOSe$_2$O$_5$ via polarized small-angle neutron scattering (SANS). Spin polarization analysis of the scattered neutrons reveals the cycloidal spin modulation in all the incommensurate phases at zero and non-zero magnetic field along the $c$ axis, providing unambiguous evidence for Neel-type skyrmions in this system. In the vicinity of the triangular skyrmion-lattice phase, extensive SANS measurements… 
View PDF on arXiv
5 Citations
Methods Citations
1

Figures from this paper

5 Citations

Meron, skyrmion, and vortex crystals in centrosymmetric tetragonal magnets

The recent experimental confirmation of a transformation between meron and skyrmion topological spin textures in the chiral magnet ${\mathrm{Co}}_{8}{\mathrm{Zn}}_{9}{\mathrm{Mn}}_{3}$ [S.-Z. Lin et…

Ferroelectric incommensurate spin crystal

Ferroics, especially ferromagnets, can form complex topological spin structures such as vortices 1 and skyrmions 2, 3 , when subjected to particular electrical and mechanical boundary conditions.…

Entangled polarizations in ferroelectrics: A focused review of polar topologies

Topological Hall effect in SrRuO3 thin films and heterostructures

Transition metal oxides hold a wide spectrum of fascinating properties endowed by the strong electron correlations. In 4d and 5d oxides, exotic phases can be realized with the involvement of strong…

Real-space observation of ferroelectrically induced magnetic spin crystal in SrRuO3

This work has constructed an SrRuO3-PbTiO3 (Ferromagnetic – Ferroelectric) bilayer that exhibits features in the Hall Hysteresis previously attributed to a Topological Hall Effect, and Skyrmions, and confirms the role of an interfacial Dzyaloshinskii–Moriya interaction at the heart of the system.

References

SHOWING 1-10 OF 56 REFERENCES

Direct evidence for cycloidal modulations in the thermal-fluctuation-stabilized spin spiral and skyrmion states of GaV 4 S 8

We report small-angle neutron scattering studies of the lacunar spinel GaV$_4$S$_8$, which reveal the long-wavelength magnetic states to be cycloidally modulated. This provides direct support for the…

Néel-Type Skyrmion Lattice in the Tetragonal Polar Magnet VOSe_{2}O_{5}.

These findings exemplify the versatile features of Néel-type Skyrmions in bulk materials, and provide a further opportunity to explore the physics of topological spin textures in polar magnets.

Spontaneous atomic-scale magnetic skyrmion lattice in two dimensions

Skyrmions are topologically protected field configurations with particle-like properties that play an important role in various fields of science. Recently, skyrmions have been observed to be…

Magnetostatic twists in room-temperature skyrmions explored by nitrogen-vacancy center spin texture reconstruction

It is shown that NV magnetometry, combined with the analysis method, provides a unique tool to investigate this previously inaccessible phenomenon and finds a Néel-type skyrmion whose chirality is not left-handed, contrary to preceding reports.

Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets.

The observation of stable magnetic skyrmions at room temperature in ultrathin transition metal ferromagnets with magnetic transmission soft X-ray microscopy is reported, providing experimental evidence of recent predictions and opening the door to room-temperature skyrMion spintronics in robust thin-film heterostructures.

Skyrmion Lattice in a Chiral Magnet

This study experimentally establishes magnetic materials lacking inversion symmetry as an arena for new forms of crystalline order composed of topologically stable spin states in the chiral itinerant-electron magnet MnSi.

Exotic skyrmion crystals in chiral magnets with compass anisotropy

This Heisenberg spin model successfully captures the main physics responsible for the magnetic structures in MnGe, and the present work may also be instructive to research on the magnetic states in other systems with strong SOC.

Skyrmion lattice structural transition in MnSi

This study suggests that various skyrmion lattices can emerge at low temperatures, where the skyrMions exhibit distinct topological nature and high sensitivity to the local magnetic anisotropy arising from the underlying chemical lattice.

Observation of two independent skyrmion phases in a chiral magnetic material

Magnetic materials can host skyrmions, which are topologically non-trivial spin textures. In chiral magnets with cubic lattice symmetry, all previously observed skyrmion phases require thermal…

Skyrmions and anomalous Hall effect in a Dzyaloshinskii-Moriya spiral magnet

Monte Carlo simulation study of a classical spin model with Dzylosinskii-Moriya interaction and the spin anisotropy under the magnetic field is presented. We found a rich phase diagram containing the…
...