Spin-Wave Emission from Vortex Cores under Static Magnetic Bias Fields

Mayr, Sina; Flajšman, Lukáš; Finizio, Simone; Hrabec, Aleš; Weigand, Markus; Förster, Jens; Stoll, Hermann; Heyderman, Laura J.; Urbánek, Michal; Wintz, Sebastian; Raabe, Jörg

doi:10.1021/acs.nanolett.0c03740

Cited by 31 publications

(12 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…More recently, S. Mayr et al experimentally demonstrated, by using of TR-STXM measurements, that the SW emission pattern of a magnetic vortex core can be manipulated by the application of an in-plane static magnetic field [63]. In particular, they studied SW generation from magnetic vortex cores stabilized in disk structures having a diameter of 3 µm and patterned by electron beam lithography in both a SFi system consisting of a Co(48nm)/Ru(0.8nm)/Ni81Fe19(45nm) trilayer and a single Py film 100 nm thick.…”

Section: Tunable Spin-wave Emission From Vortex Coresmentioning

confidence: 99%

Review on magnonics with engineered spin textures

Petti¹,

Tacchi²,

Albisetti³

2022

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

Spin textures, such as non-uniform domain arrangements, domain walls and skyrmions are naturally occurring structures in magnetic materials. Recently, the unique properties of spin textures such as their reconfigurability, stability and scalability towards nanoscale dimensions, has sparkled the interests towards their use as active elements in spintronic devices. In the framework of magnonics, which aims to use spin waves for carrying and processing information, using spin textures allows to harness an extremely rich phenomenology for designing new functionalities. In this review, we focus on the recent developments on the control and stabilization of engineered spin textures, and their applications in the field of magnonics. First, we introduce the main techniques used for stabilizing the spin textures and controlling their properties. Then we review the recent results on the use of engineered spin textures for guiding, emitting and manipulating spin waves, and the recent proposals on the realization of complex functionalities using integrated spin-texture-based systems, which hint to possible future directions for technological prospects.

show abstract

Section: Tunable Spin-wave Emission From Vortex Coresmentioning

confidence: 99%

Review on magnonics with engineered spin textures

Petti¹,

Tacchi²,

Albisetti³

2022

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

“…The vortex cores located on the top and bottom surfaces of the disk are no longer coaxial and the two vortex cores on the top and bottom surfaces of the disk are connected through the domain wall stretched along the x-axis (See Supplementary Fig. 1 and Supplementary Note 1), which indicates that the VC 3 structure is clearly a 2D vortex core structure (See orange dotted arrows) 21,40,[46][47][48][49][50][51] . We confirmed that the dimensional change of the vortex core structure starts occurring at H x = 15 mT, and the domain wall connecting the vortex cores on the top and bottom surfaces of the disk gets longer as H x increases until the vortex core structure is annihilated at H x = 62 mT (See Supplementary Fig.…”

Section: Resultsmentioning

confidence: 99%

Tuning of oscillation modes by controlling dimensionality of spin structures

et al. 2022

View full text Add to dashboard Cite

Harmonic oscillation of spin structures is a physical phenomenon that offers great potential for applications in nanotechnologies such as nano-oscillators and bio-inspired computing. The effective tuning of oscillations over wide frequency ranges within a single ferromagnetic nanoelement is a prerequisite to realize oscillation-based nanodevices, but it has not been addressed experimentally or theoretically. Here, utilizing a vortex core structure, one of spin structures, we report a drastic change of oscillation modes over the frequency range from MHz to sub-GHz in a 100 nm-thick permalloy circular disk. Oscillation mode was found to considerably depend on the shape and dimension of the vortex core structure and various oscillation modes over a wide range of frequencies appeared with dimensional change in the vortex core structure. This work demonstrates that oscillation modes of the vortex core structure can be effectively tuned and opens a way to apply spin structures to oscillation-based technology.

show abstract

“…In summary, we proposed a design of spintronic oscillators based on DMI, which has shown great potential in the applications of neuromorphic computing and tunable spin wave emitters 52,53 . Through a systematic study, we revealed the basic dynamic properties of the oscillator and achieved precise manipulation of the oscillator with spin polarized current and magnetic field.…”

Section: Main Textmentioning

confidence: 99%

Synchronization of chiral vortex nano-oscillators

Zeng

Luo

Heyderman

et al. 2021

Applied Physics Letters

Self Cite

View full text Add to dashboard Cite

The development of spintronic oscillators is driven by their potential applications in radio frequency telecommunication and neuromorphic computing. In this work, we propose a spintronic oscillator based on the chiral coupling in thin magnetic films with patterned anisotropy. With an in-plane magnetized disk imprinted on an out-of-plane magnetized slab, the oscillator takes a polar vortex-like magnetic structure in the disk stabilized by a strong Dzyaloshinskii-Moriya interaction. By means of micromagnetic simulations, we investigate its oscillatory properties under applied spin current and, by placing an ensemble of oscillators in the near vicinity, we demonstrate their synchronization with different resonant frequencies. Finally, we show their potential application in neuromorphic computing using a network with six oscillators.

show abstract

Spin-Wave Emission from Vortex Cores under Static Magnetic Bias Fields

Cited by 31 publications

References 57 publications

Review on magnonics with engineered spin textures

Review on magnonics with engineered spin textures

Tuning of oscillation modes by controlling dimensionality of spin structures

Synchronization of chiral vortex nano-oscillators

Contact Info

Product

Resources

About