A gigahertz-range spin-wave filter composed of width-modulated nanostrip magnonic-crystal waveguides

Kim, Sang‐Koog; Lee, Ki-Suk; Han, Dong‐Soo

doi:10.1063/1.3186782

Cited by 154 publications

(81 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Nevertheless, few theoretical reports on the study of dispersion of SWs in 3D MCs have been made. 25,26 Structured magnonic waveguides [27][28][29] have recently attracted considerable attention due to their selective transmission of microwave bands in the micro-and nano-scales and their potential applications in on-chip microwave signal processing and communication. Magnetic antidots have emerged as an important system of MCs; and a thorough investigation of high frequency magnetization dynamics in them has been reported in the literature.…”

Section: Magnonicsmentioning

confidence: 99%

Effect of hole shape on spin-wave band structure in one-dimensional magnonic antidot waveguide

Kumar¹,

Sabareesan²,

Wang³

et al. 2013

Journal of Applied Physics

View full text Add to dashboard Cite

We present the possibility of tuning the spin-wave band structure, particularly the bandgaps in a nanoscale magnonic antidot waveguide by varying the shape of the antidots. The effects of changing the shape of the antidots on the spin-wave dispersion relation in a waveguide have been carefully monitored. We interpret the observed variations by analysing the equilibrium magnetic configuration and the magnonic power and phase distribution profiles during spin-wave dynamics. The inhomogeneity in the exchange fields at the antidot boundaries within the waveguide is found to play a crucial role in controlling the band structure at the discussed length scales. The observations recorded here will be important for future developments of magnetic antidot based magnonic crystals and waveguides. V C 2013 AIP Publishing LLC. [http://dx

show abstract

Section: Magnonicsmentioning

confidence: 99%

Effect of hole shape on spin-wave band structure in one-dimensional magnonic antidot waveguide

Kumar¹,

Sabareesan²,

Wang³

et al. 2013

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

“…Therefore, the vortex state is formed by reducing the demagnetization energy by increasing the exchange coupling energy for in-plane magnetic materials. There are many researches on the vortex dynamics with the ac-and dc-external fields and spin polarizing currents [4][5][6][7] as well as with the devices [8,9]. However, all researches regarding the vortex states are considered only in the in-plane magnetic anisotropy (IMA) materials.…”

Section: Introductionsmentioning

confidence: 99%

Metastable Vortex State of Perpendicular Magnetic Anisotropy Free Layer in Spin Transfer Torque Magnetic Tunneling Junctions

You¹,

Kim²

2013

Journal of Magnetics

View full text Add to dashboard Cite

We find a metastable vortex state of the perpendicular magnetic anisotropy free layer in spin transfer torque magnetic tunneling junctions by using micromagnetic simulations. The metastable vortex state does not exist in a single layer, and it is only found in the trilayer structure with the perpendicular magnetic anisotropy polarizer layer. It is revealed that the physical origin is the non-uniform stray field from the polarizer layer.

show abstract

“…MCs form the building blocks of magnonics, an emergent research field dealing with the ability of patterned magnetic media to transmit and process information via SWs. 2,3 Various practical applications of these MCs, such as SW filters 4 and highly sensitive magnetic field sensors, 5 have been proposed.…”

Section: Introductionmentioning

confidence: 99%

Interfacial magnetization dynamics of a bi-component magnonic crystal comprising contacting ferromagnetic nanostripes

Lin

Lim

Zhang

et al. 2012

Journal of Applied Physics

View full text Add to dashboard Cite

An investigation of the interfacial magnetization dynamics of a magnonic crystal comprising alternating, contacting cobalt and Permalloy nanostripes is reported. Recently measured spin-wave dispersion data of the crystal in its ferromagnetic and antiferromagnetic phases are interpreted in terms of the effective spin pinning at its cobalt-Permalloy interfaces based on generalized Guslienko-Slavin boundary conditions. Calculations using a macroscopic theory well reproduce the experimental data. Numerically generated mode profiles reveal considerable effective pinnings at the interfaces. The obtained pinning parameters have values significantly larger than the values calculated at the lateral edges of individual stripes, suggesting that the strong interfacial coupling, reported in our previous study, contributes significantly to the effective pinning at the interfaces between adjacent stripes.

show abstract

A gigahertz-range spin-wave filter composed of width-modulated nanostrip magnonic-crystal waveguides

Abstract: Tuning the band structures of a one-dimensional width-modulated magnonic crystal by a transverse magnetic field

Cited by 154 publications

References 19 publications

Effect of hole shape on spin-wave band structure in one-dimensional magnonic antidot waveguide

Effect of hole shape on spin-wave band structure in one-dimensional magnonic antidot waveguide

Metastable Vortex State of Perpendicular Magnetic Anisotropy Free Layer in Spin Transfer Torque Magnetic Tunneling Junctions

Interfacial magnetization dynamics of a bi-component magnonic crystal comprising contacting ferromagnetic nanostripes

Contact Info

Product

Resources

About