Radiation of spin waves by a single micrometer-sized magnetic element

Demidov, V. E.; Demokritov, S. O.; Hillebrands, B.; Laufenberg, M.; Freitas, P. P.

doi:10.1063/1.1803621

Cited by 104 publications

(58 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…To evaluate the functionality of the proposed spin-wave multiplexer, we employed Brillouin light scattering (BLS) microscopy 20,21 . Measuring the BLS intensity for various excitation frequencies inside the arms of the Y-shaped multiplexer enables us to determine whether the spin-wave propagation path can be switched.…”

Section: Resultsmentioning

confidence: 99%

Realization of a spin-wave multiplexer

et al. 2014

View full text Add to dashboard Cite

Recent developments in the field of spin dynamics-like the interaction of charge and heat currents with magnons, the quasi-particles of spin waves-opens the perspective for novel information processing concepts and potential applications purely based on magnons without the need of charge transport. The challenges related to the realization of advanced concepts are the spin-wave transport in two-dimensional structures and the transfer of existing demonstrators to the micro-or even nanoscale. Here we present the experimental realization of a microstructured spin-wave multiplexer as a fundamental building block of a magnon-based logic. Our concept relies on the generation of local Oersted fields to control the magnetization configuration as well as the spin-wave dispersion relation to steer the spin-wave propagation in a Y-shaped structure. Thus, the present work illustrates unique features of magnonic transport as well as their possible utilization for potential technical applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Realization of a spin-wave multiplexer

et al. 2014

View full text Add to dashboard Cite

show abstract

“…The precession amplitude is measured locally by means of BLS microscopy with a spatial resolution of 250 nm. A detailed explanation of this technique can be found in [14,15]. The results are shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

“…The rising edge of the pulse starts a counter with a time resolution of 250 ps. From this time on, the arrival time of each inelastically scattered photon is acquired together with its frequencysimilar to the experiment described in [15]. The full spectral, spatial and temporal (color online) Temporal evolution of the quasi-eigenmodes located in the poles of the ring structure under the resonant excitation with a microwave pulse with a duration of 50 ns.…”

Section: Methodsmentioning

confidence: 99%

Dissipation characteristics of quantized spin waves in nano-scaled magnetic ring structures

Schultheiß¹,

Sandweg²,

Obry³

et al. 2008

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

Abstract. The spatial profiles and the dissipation characteristics of spin-wave quasieigenmodes are investigated in small magnetic Ni 81 Fe 19 ring structures using Brillouin light scattering microscopy. It is found, that the decay constant of a mode decreases with increasing mode frequency. Indications for a contribution of three-magnon processes to the dissipation of higher-order spin-wave quasi-eigenmodes are found.arXiv:0804.2200v1 [cond-mat.mtrl-sci]

show abstract

“…Much progress has been accomplished recently in accessing both the spin-wave modes in conf ned geometries [73][74][75][76][77][78] and in probing the out of equilibrium magnetization dynamics [79][80][81][82][83]. For the specif c case of the ring geometry, ferromagnetic resonance (FMR) [78,84,85], time-resolved MOKE [85] and Brillouin light scattering (BLS) [86] measurements have been performed to probe and determine the spin-wave eigenmodes characteristic of magnetic rings.…”

Section: Field Induced Magnetic Switchingmentioning

confidence: 99%

Ferromagnetic Nanorings

et al. 2007

View full text Add to dashboard Cite

Ferromagnetic metal rings of nanometre range widths and thicknesses exhibit fundamentally new spin states, switching behaviour and spin dynamics, which can be precisely controlled via geometry, material composition and applied f eld. Following the discovery of the 'onion state', which mediates the switching to and between vortex states, a range of fascinating phenomena has been found in these structures. In this overview of our work on ring elements, we f rst show how the geometric parameters of ring elements determine the exact equilibrium spin conf guration of the domain walls of rings in the onion state, and we show how such behaviour can be understood as the result of the competition between the exchange and magnetostatic energy terms. Electron transport provides an extremely sensitive probe of the presence, spatial location and motion of domain walls, which determine the magnetic state in individual rings, while magneto-optical measurements with high spatial resolution can be used to probe the switching behaviour of ring structures with very high sensitivity. We illustrate how the ring geometry has been used for the study of a wide variety of magnetic phenomena, including the displacement of domain walls by electric currents, magnetoresistance, the strength of the pinning potential introduced by nanometre size constrictions, the effect of thermal excitations on the equilibrium state and the stochastic nature of switching events.

show abstract

Radiation of spin waves by a single micrometer-sized magnetic element

Cited by 104 publications

References 9 publications

Realization of a spin-wave multiplexer

Realization of a spin-wave multiplexer

Dissipation characteristics of quantized spin waves in nano-scaled magnetic ring structures

Ferromagnetic Nanorings

Contact Info

Product

Resources

About