Three-Dimensional Magnonics: Layered, Micro- and Nanostructures

417 Pages·2019·38.825 MB·\417

by  Gianluca Gubbiotti (Editor)

Three-Dimensional
Magnonics

Three-Dimensional
Magnonics
LAYERED, MICRO- AND NANOSTRUCTURES
edited by
Gianluca Gubbiotti
September6,2019 9:45 JSPBook-9inx6in 00-Gubbiotti-Prelims
Publishedby
JennyStanfordPublishingPte.Ltd.
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Three-DimensionalMagnonics:Layered,Micro-andNanostructures
Copyright(cid:2)c 2019JennyStanfordPublishingPte.Ltd.
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ISBN978-981-4800-73-0(Hardcover)
ISBN978-0-429-29915-5(eBook)
June6,2019 10:59 JSPBook-9inx6in 00-Gubbiotti-Prelims
ToRoberta,Matteo,andAndreawithlove.
June6,2019 10:59 JSPBook-9inx6in 00-Gubbiotti-Prelims
June6,2019 10:59 JSPBook-9inx6in 00-Gubbiotti-Prelims
Contents
Preface xiii
1 DipoleExchangeTheoryofMagnonsinStructured
CompositeNanowiresandMagnonicCrystalArrays 1
M.G.Cottam,Z.Haghshenasfard,A.O.Adeyeye,and
G.Gubbiotti
1.1 Introduction 2
1.2 HamiltonianTheoryforFilms 6
1.2.1 SWFrequencies 7
1.2.2 Applications 9
1.3 HamiltonianTheoryforNanowires 11
1.3.1 SWFrequencies 11
1.3.2 Applications 13
1.4 HamiltonianTheoryforMagnonicCrystals 17
1.4.1 SWFrequencies 18
1.4.2 Applications 19
1.5 InclusionofInterlayerExchangeCoupling 21
1.5.1 SWFrequencies 22
1.5.2 Applications 24
1.6 Conclusion 25
2 From2DPlanarMagnonicCrystalsto3DMagnonicCrystals 33
P.Graczyk,P.Gruszecki,S.Mamica,J.W.Kłos,M.Krawczyk,
andG.Gubbiotti
2.1 Introduction 33
2.2 ControlofSpin-WaveDynamicsin1D+and2D+
MagnonicCrystals 36
2.2.1 Bicomponent2D+MagnonicCrystalswith
NonmagneticSpacers 36
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viii Contents
2.2.2 Hybrid1D+or2D+MagnonicCrystals 40
2.2.2.1 ReprogrammabilityofMagnonicBand
Structurein2D+ 40
2.2.2.2 Magnonicdirectionalcouplersin
hybrid1D+magnoniccrystals 47
2.3 3DMagnonicCrystals 51
2.3.1 TheModel 52
2.3.2 CompleteMagnonicBandgaps 54
2.3.3 PerspectivestowardExperimentalRealization 57
2.4 ConclusionsandProspects 59
3 3DMagnonicCrystals 67
E.N.Beginin,D.V.Kalyabin,P.A.Popov,A.V.Sadovnikov,
A.Yu.Sharaevskaya,A.I.Stognij,andS.A.Nikitov
3.1 Introduction 67
3.1.1 Technologyof3DMagnonicCrystal
Development 70
3.2 FerromagneticResonanceinaMeander-Type
FerromagneticFilm 75
3.2.1 TransverselyMagnetizedMeander 77
3.2.2 LongitudinallyMagnetizedMeander 79
3.3 MagnetostaticSurfaceWavesin3DStructures 81
3.4 Forward-VolumeandBackward-Volume
MagnetostaticWavesin3DStructures 86
3.5 MagnetostaticWavesinVerticallyCoupledStructures 93
3.5.1 MagnetostaticSurfaceWavesinVertically
CoupledStructures 93
3.5.2 Forward-VolumeandBackward-Volume
MagnetostaticWavesinVerticallyCoupled
Structures 95
3.6 Conclusion 97
4 SpinWavesinMagneticMetal-InsulatorHybrid
Nanostructures 105
ChuanpuLiu,JileiChen,andHaimingYu
4.1 Introduction 105
4.2 Long-DistancePropagationofShort-Wavelength
SpinWaves 106
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Contents ix
4.2.1 SampleFabricationandAll-Electrical
Spin-WaveMeasurementTechnique 106
4.2.2 DifferentMagneticConfigurationsonthe
Co/YIGHybridNanostructures 108
4.2.3 ExcitationofShort-WavelengthSpinWaves 109
4.2.4 DispersionofDipoleExchangeSpinWaves 111
4.3 InterlayerMagnon–MagnonCouplinginNi/YIG-
andCo/YIG-BasedMagnonicCrystals 113
4.3.1 Magnon–MagnonCouplinginaNi/YIG-Based
HybridStructure 114
4.3.2 CouplingStrengthandMagnon–Magnon
Cooperativity 115
4.3.3 TuningtheMagnon–MagnonCouplingby
DifferentMagneticConfigurations 116
5 SpinWavesinThinFilmsandMagnonicCrystalswith
Dzyaloshinskii–MoriyaInteractions 121
RodolfoA.Gallardo,DavidCorte´s-Ortun˜o,
RobertoE.Troncoso,andPedroLanderos
5.1 Introduction 121
5.2 SpinWavesinThinFilmswithBulkDMI 124
5.3 SpinWavesinThinFilmswithInterfacialDMI 130
5.4 MicromagneticSimulationsofSpinWaveswith
InterfacialDMI 135
5.5 SpinWavesinThinFilmswithPeriodicDMI 139
5.6 Conclusions 144
6 EmissionandActiveManipulationofSpinWavesin
MultiferroicHeterostructures 161
SampoHa¨ma¨la¨inen,HuajunQin,andSebastiaanvanDijken
6.1 Strain-CoupledMultiferroicHeterostructures 162
6.2 Spin-WaveEmissionfromaPinnedDomainWall 165
6.3 Spin-WaveConfinementandEmissionbyUniform
FieldExcitation 168
6.4 Spin-WaveManipultionbyaProgrammable
DomainWall 172
6.5 ElectricFieldControlofSpinWaves 175