The 2021 roadmap for noncollinear magnonics

Mruczkiewicz, M.; Gruszecki, Paweł

doi:10.1016/bs.ssp.2021.09.001

Cited by 6 publications

(6 citation statements)

References 197 publications

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“…We can observe that the amplitudes of these modes are localized in every second domain wall (different for the second and third modes). It is an analogous observation as in the case of weak stripe domain patterns 2 , 14 , 28 , where the unidirectionality was found for thicker films without DMI and caused by the complex corkscrew type internal structure of domain walls and dipole interactions. Finally, in the RGB representation of the SW amplitude, we can see that these unidirectional modes are blue-dyed.…”

Section: Resultssupporting

confidence: 72%

Influence of Dzyaloshinskii–Moriya interaction and perpendicular anisotropy on spin waves propagation in stripe domain patterns and spin spirals

Gruszecki

Kisielewski

2023

Sci Rep

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Texture-based magnonics focuses on the utilization of spin waves in magnetization textures to process information. Using micromagnetic simulations, we study how (1) the dynamic magnetic susceptibility, (2) dispersion relations, and (3) the equilibrium magnetic configurations in periodic magnetization textures in a ultrathin ferromagnetic film in remanence depend on the values of the Dzyaloshinskii–Moriya interaction and the perpendicular magnetocrystalline anisotropy. We observe that for large Dzyaloshinskii–Moriya interaction values, spin spirals with periods of tens of nanometers are the preferred state; for small Dzyaloshinskii–Moriya interaction values and large anisotropies, stripe domain patterns with over a thousand times larger period are preferable. We observe and explain the selectivity of the excitation of resonant modes by a linearly polarized microwave field. We study the propagation of spin waves along and perpendicular to the direction of the periodicity. For propagation along the direction of the periodicity, we observe a bandgap that closes and reopens, which is accompanied by a swap in the order of the bands. For waves propagating in the perpendicular direction, some modes can be used for unidirectional channeling of spin waves. Overall, our findings are promising in sensing and signal processing applications and explain the fundamental properties of periodic magnetization textures.

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Section: Resultssupporting

confidence: 72%

Influence of Dzyaloshinskii–Moriya interaction and perpendicular anisotropy on spin waves propagation in stripe domain patterns and spin spirals

Gruszecki

Kisielewski

2023

Sci Rep

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show abstract

“…We can observe that the amplitudes of these modes are localized in every second domain wall (different for the second and third modes). It is an analogous observation as in the case of weak stripe domain patterns 2,14,27 , where the unidirectionality was found for thicker films without DMI and caused by the complex corkscrew type internal structure of domain walls and dipole interactions. In our 2-nm-thick Co films this unidirectionality is caused mainly by DMI and the role of dipole interaction is much smaller.…”

Section: Propagation Along the Y-axis (Along Domains)supporting

confidence: 72%

“…5 and was also observed for weak stripe domains. 2,14,27 Moreover, as shown in Fig. 4(c) and (d), the second and third bands (bulkand DW-type) cross without hybridization since they have different origins and do not interact with each other.…”

Section: Discussionmentioning

confidence: 95%

“…Magnetic texture-based magnonics [1][2][3] is a subfield of magnonics 4 focused on spin wave (SW) dynamics in non-uniform magnetization textures, such as single domain wall, [5][6][7][8] skyrmion, 9 or periodic magnetization textures such as skyrmion lattices 10,11 or stripe domain patterns. [12][13][14] The primary advantages of using magnetization textures as a medium for SW propagation with respect to uniformly magnetized nanofabricated films are (i) no need for complex nanostructuring and reduced impact of defects, (ii) reprogrammability, and (iii) the ability to couple magnetization dynamics with the magnetization textures.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Dzyaloshinskii–Moriya interaction and perpendicular anisotropy on spin waves propagation in stripe domain patterns and spin spirals

Gruszecki

Kisielewski

2022

Preprint

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Texture-based magnonics focuses on the utilization of spin waves in magnetization textures to process information. Using micromagnetic simulations, we study how (i) the dynamic magnetic susceptibility, (ii) dispersion relations, and (iii) the equilibrium magnetic configurations in periodic magnetization textures in ultrathin ferromagnetic films in remanence depend on the values of the Dzyaloshinskii–Moriya interaction and the perpendicular magnetocrystalline anisotropy. We observe that for large Dzyaloshinskii–Moriya interaction values, spin spirals with periods of tens of nanometers are the preferred state; for small Dzyaloshinskii–Moriya interaction and large anisotropies, stripe domain patterns with over a thousand times larger period are preferable. We observe and explain the selectivity of the excitation of resonant modes by a linearly polarized microwave field. We study the propagation of spin waves along and perpendicular to the direction of the periodicity. For propagation along the direction of the periodicity, we observe a band gap that closes and reopens, which is accompanied by a swap in the order of the bands. For waves propagating in the perpendicular direction, some modes can serve as unidirectional channels for spin waves. Overall, our findings are promising in sensing and signal processing applications and explain the fundamental properties of periodic magnetization textures.

show abstract

“…Magnetic texture-based magnonics is becoming an excitingly growing sub eld of magnonics [5,58,155]. The main advantages of the utilization of magnetization textures as a medium for SW propagation are the magnetic eld-driven recon gurability, so a complex nanostructuring is not required and the impact of defects may be reduced, these systems do not require any static external magnetic eld during their operation, and o er the ability to couple SWs with the magnetization texture dynamics.…”

Section: Sw Bands In Stripe Domain Structurementioning

confidence: 99%

Spin dynamics in patterned magnetic multilayers with perpendicular magnetic anisotropy

Zelent

Gruszecki

Moalic

et al. 2022

Solid State Physics

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The 2021 roadmap for noncollinear magnonics

Cited by 6 publications

References 197 publications

Influence of Dzyaloshinskii–Moriya interaction and perpendicular anisotropy on spin waves propagation in stripe domain patterns and spin spirals

Influence of Dzyaloshinskii–Moriya interaction and perpendicular anisotropy on spin waves propagation in stripe domain patterns and spin spirals

Influence of Dzyaloshinskii–Moriya interaction and perpendicular anisotropy on spin waves propagation in stripe domain patterns and spin spirals

Spin dynamics in patterned magnetic multilayers with perpendicular magnetic anisotropy

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