Low-loss YIG-based magnonic crystals with large tunable bandgaps

@article{Qin2018LowlossYM,
  title={Low-loss YIG-based magnonic crystals with large tunable bandgaps},
  author={Huajun Qin and Gert-Jan Both and Sampo J. H{\"a}m{\"a}l{\"a}inen and Lide Yao and Sebastiaan van Dijken},
  journal={Nature Communications},
  year={2018},
  volume={9}
}
Control of spin waves in magnonic crystals is essential for magnon-based computing. Crystals made of ferromagnetic metals offer versatility in band structure design, but strong magnetic damping restricts their transmission efficiency. Yttrium iron garnet (YIG) with ultralow damping is the palpable alternative, yet its small saturation magnetization limits dipolar coupling between discrete units. Here, we experimentally demonstrate low-loss spin-wave manipulation in magnonic crystals of… 
Active Control of Spin Waves in Micro- and Nanoscale YIG-based Magnetic Structures
Magnonic devices based on active manipulation of spin waves, provide a broad set of solutions to many problems in CMOS technology as these can be operated at very high switch speeds on nanoscale
Nanometer-thick YIG-based magnonic crystals: Bandgap dependence on groove depth, lattice constant, and film thickness
We report on bandgap tuning in magnonic crystals made of nanometer-thick yttrium iron garnet (YIG) films with CoFeB-filled grooves via a variation of the groove depth, lattice constant, and film
Facet controlled anisotropic magnons in Y3Fe5O12 thin films
Directional specific control on the generation and propagation of magnons is essential for designing future magnon-based logic and memory devices for low power computing. The epitaxy of the
Voltage-Controlled Reconfigurable Magnonic Crystal at the Sub-micrometer Scale.
TLDR
The magnetoelectric coupling is evidence by characterizing the spin wave propagation spectrum in this artificial, voltage induced, magnonic crystal and the occurrence of a robust magnonic band gap with >20 dB rejection is demonstrated.
Tunable Damping in Magnetic Nanowires Induced by Chiral Pumping of Spin Waves.
TLDR
Tunable line width broadening has been confirmed independently by propagating spin-wave spectroscopy, where unidirectional spin waves are detected and position-dependent BLS measurement unravels an oscillating-like behavior of magnon populations in Co nanowire grating, which might result from the magnon trap effect.
Dynamic electromagnonic crystal based on artificial multiferroic heterostructure
One of the main challenges for the modern magnonics, which, as opposed to the conventional electronics, operates with quanta of spin waves in magnetically ordered materials—magnons—is energy
Building Blocks for Magnon Optics: Emission and Conversion of Short Spin Waves
TLDR
A method to measure the full spin wave isofrequency contour for a given frequency and field is reported on, which gives access to short wavelength spin waves to a broad range of magnonic devices without the need for refined sample preparation techniques.
Influence of nonmagnetic dielectric spacers on the spin-wave response of one-dimensional planar magnonic crystals
The one-dimensional planar magnonic crystals are usually fabricated as a sequence of stripes intentionally or accidentally separated by non-magnetic spacers. The influence of spacers on shaping the
Magnonic crystals: towards terahertz frequencies
  • K. Zakeri
  • Physics
    Journal of Physics: Condensed Matter
  • 2020
This topical review presents an overview of the recent experimental and theoretical attempts on designing magnonic crystals for operation at different frequencies. The focus is put on the microscopic
Reconfigurable Spin-Wave Interferometer at the Nanoscale.
TLDR
The interference of spin waves with wavelengths down to 50 nm in a low-damping magnetic insulator is demonstrated, which is found to be highly sensitive to the distance between two magnetic nanowires acting as spin-wave emitters.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 49 REFERENCES
Magnonic band gaps in YIG-based one-dimensional magnonic crystals: An array of grooves versus an array of metallic stripes
We present an experimental and theoretical study of magnonic band gaps in planar one-dimensional magnonic crystals of two types, with a periodic array of metallic stripes or a periodic array of
Nanostructured magnonic crystals with size-tunable bandgaps.
TLDR
Using advanced electron beam lithographic techniques, a series of novel bicomponent magnonic crystals which exhibit well-defined frequency bandgaps are fabricated, and it is observed that the bandgap width decreases with increasing permalloy stripe width, but increases with increasing cobalt stripe width.
Magnetic thin-film insulator with ultra-low spin wave damping for coherent nanomagnonics
TLDR
It is demonstrated that nm-thick YIG films overcome the damping chasm and are expected to provide the basis for coherent data processing with SWs at GHz rates and in large arrays of cellular magnetic arrays, thereby boosting the envisioned image processing and speech recognition.
Review and prospects of magnonic crystals and devices with reprogrammable band structure.
TLDR
This topical review addresses materials with a periodic modulation of magnetic parameters that give rise to artificially tailored band structures and allow unprecedented control of spin waves in microand nanostructured ferromagnetic materials.
Magnonic band structures in two-dimensional bi-component magnonic crystals with in-plane magnetization
We investigate the magnonic band structure of in-plane magnetized two-dimensional magnonic crystals composed of cobalt dots embedded into a permalloy antidot lattice. Our analysis is based on the
Standing spin waves in magnonic crystals
The features of standing spin waves (SWs) excited during ferromagnetic resonance in three different one-dimensional magnonic crystals (MC) are intensively studied. The investigated magnonic crystals
Mapping of spin wave propagation in a one-dimensional magnonic crystal
The formation and evolution of spin wave band gaps in the transmission spectrum of a magnonic crystal have been studied. A time and space resolved magneto inductive probing system has been used to
Omnidirectional spin-wave nanograting coupler
TLDR
The magnonic grating coupler is found to be more versatile compared with gratings in photonics and plasmonics, and allows one to convert, in particular, straight microwave antennas into omnidirectional emitters for short-wavelength spin waves, which are key to cellular nonlinear networks and integrated magnonics.
Propagating spin waves in nanometer-thick yttrium iron garnet films: Dependence on wave vector, magnetic field strength, and angle
We present a comprehensive investigation of propagating spin waves in nanometer-thick yttrium iron garnet (YIG) films. We use broadband spin-wave spectroscopy with integrated coplanar waveguides
...
1
2
3
4
5
...