The 2019 surface acoustic waves roadmap

Delsing, Per; Cleland, A. N.; Schuetz, Martin J. A.; Knörzer, Johannes; Giedke, G.; Cirac, J. I.; Srinivasan, Kartik; Wu, Marcelo; Balram, Krishna C.; Bäuerle, Christopher; Meunier, Tristan; Ford, C. J. B.; Santos, P. V.; Cerda‐Méndez, E. A.; Wang, Hailin; Krenner, Hubert J.; Nysten, Emeline D. S.; Weiß, Matthias; Nash, George; Thevenard, L.; Gourdon, C.; Rovillain, Pauline; Marangolo, Max; Duquesne, Jean-Yves; Fischerauer, Gerhard; Ruile, W.; Reiner, Alexander; Paschke, Ben; Denysenko, Dmytro; Volkmer, Dirk; Wixforth, Achim; Bruus, Henrik; Wiklund, Martin; Reboud, Julien; Cooper, Jonathan M.; Fu, Yong Qing; Brugger, Manuel S.; Rehfeldt, Florian; Westerhausen, Christoph

doi:10.1088/1361-6463/ab1b04

Cited by 295 publications

(191 citation statements)

References 182 publications

(251 reference statements)

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“…However, it would be interesting to demonstrate the generation of SAW induced spin current in an allnonmagnetic structure. Coupling involving SAW has multiple applications that range from wireless technology, sensing, biology to control of elemental charges in condensed matter and coupling to quantum states of matter [24], which offers opportunities for interdisciplinary research and device developments.…”

Section: Discussionmentioning

confidence: 99%

Acoustic ferromagnetic resonance and spin pumping induced by surface acoustic waves

Puebla

Rana

et al. 2020

J. Phys. D: Appl. Phys.

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Voltage induced magnetization dynamics of magnetic thin films is a valuable tool to study anisotropic fields, exchange couplings, magnetization damping and spin pumping mechanism. A particularly well established technique is the ferromagnetic resonance (FMR) generated by the coupling of microwave photons and magnetization eigenmodes in the GHz range. Here we review the basic concepts of the so-called acoustic ferromagnetic resonance technique (a-FMR) induced by the coupling of surface acoustic waves (SAW) and magnetization of thin films. Interestingly, additional to the benefits of the microwave excited FMR technique, the coupling between SAW and magnetization also offers fertile ground to study magnon-phonon and spin rotation couplings. We describe the in-plane magnetic field angle dependence of the a-FMR by measuring the absorption / transmission of SAW and the attenuation of SAW in the presence of rotational motion of the lattice, and show the consequent generation of spin current by acoustic spin pumping.PACS numbers:

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Section: Discussionmentioning

confidence: 99%

Acoustic ferromagnetic resonance and spin pumping induced by surface acoustic waves

Puebla

Rana

et al. 2020

J. Phys. D: Appl. Phys.

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“…With the development of new materials and structures, as well as the development of experimental techniques, various aspects of the magnon-phonon interaction acquired a new sense and are currently being actively explored in microwave spintronics, streintronics, spincaloritronics and magnonics [1][2][3][4][5][6][7][8]. The piezoelectric generation of acoustically driven spin waves (ADSW) in piezoelectric /magnetoelastic structures is promising for use in low power consumption devices free from ohmic losses [7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Yttrium Iron Garnet Thickness Influence on the Spin Pumping in the Bulk Acoustic Wave Resonator

Alekseev

Polzikova

Raevskiy

2019

J. Commun. Technol. Electron.

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The features of phononmagnon interconversion in acoustic resonator determine the efficiency of spin pumping from YIG into Pt that may be detected electrically through the inverse spin Hall effect (ISHE). Based on the methods developed in previous works for calculating resonator structures with a piezoelectric (ZnO) and a magnetoelastic layer in contact with the heavy metal (YIG/Pt), we present the results of numerical calculations of YIG film thickness influence on acoustically driven spin waves. We obtain some YIG film thickness regions with various behavior of dc ISHE voltage UISHE. At micron and submicron thicknesses, the higher spin wave resonance (SWR) modes (both even and odd) can be generated with efficiency comparable and even exceeding that of the main mode. The absolute maximum of UISHE is achieved at the thickness about s1≈208 nm under the excitation of the first SWR.

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“…Therefore, the phonons are itinerant on the material surface and in the form of propagating waves [31]. To control the quantized motions effectively, the SAW cavities are often combined with other systems, for example, with superconducting qubits or color centers, to form as hybrid quantum systems [40]. Analog to quantum controls with photons, many acoustic devices, such as circulators, switches and routers, are also needed for generating, controlling, and detecting SAW phonons in QAD experiment [10,35,[41][42][43][44][45][46][47].…”

mentioning

confidence: 99%

“…In experiments, various methods are employed to enhance the coupling between the SAW modes and superconducting qubits. For example, choosing a strong piezoelectric material will increase the coupling significantly [40]. As discussed in [30][31][32], we assume g p /(2π)=60 MHz.…”

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confidence: 99%

Generating synthetic magnetism via Floquet engineering auxiliary qubits in phonon-cavity-based lattice

Wang

2020

New J. Phys.

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Gauge magnetic fields have a close relation to breaking time-reversal symmetry in condensed matter.In the presence of the gauge fields, we might observe nonreciprocal and topological transport. Inspired by these, there is a growing effort to realize exotic transport phenomena in optical and acoustic systems. However, due to charge neutrality, realizing analog magnetic flux for phonons in nanoscale systems is still challenging in both theoretical and experimental studies. Here we propose a novel mechanism to generate synthetic magnetic field for phonon lattice by Floquet engineering auxiliary qubits. We find that, a longitudinal Floquet drive on the qubit will produce a resonant coupling between two detuned acoustic cavities. Specially, the phase encoded into the longitudinal drive can exactly be transformed into the phonon-phonon hopping. Our proposal is general and can be realized in various types of artificial hybrid quantum systems. Moreover, by taking surface-acoustic-wave (SAW) cavities for example, we propose how to generate synthetic magnetic flux for phonon transport. In the presence of synthetic magnetic flux, the time-reversal symmetry will be broken, which allows one to realize the circulator transport and analog Aharonov-Bohm effects for acoustic waves. Last, we demonstrate that our proposal can be scaled to simulate topological states of matter in quantum acoustodynamics system.In recent years, manipulating acoustic waves at a single-phonon level has drawn a lot of attention [28], and the quantum acoustodynamics (QAD) based on piezoelectric surface acoustic waves (SAW) has emerged as a versatile platform to explore quantum features of acoustic waves [29][30][31][32][33][34][35][36]. Unlike localized mechanical oscillations [37][38][39], the piezoelectric surface is much larger compared with the acoustic wavelength. Therefore, the phonons are itinerant on the material surface and in the form of propagating waves [31]. To control the quantized motions effectively, the SAW cavities are often combined with other systems, for example, with superconducting qubits or color centers, to form as hybrid quantum systems [40]. Analog to quantum controls with photons, many acoustic devices, such as circulators, switches and routers, are also needed for generating, controlling, and detecting SAW phonons in QAD experiment [10,35,[41][42][43][44][45][46][47]. However, it is still challenging to realize these nonreciprocal acoustic quantum devices in the artificial nano-and micro-scale SAW systems [27,48].By applying an external time periodic drive on a static system, the effective Hamiltonian of the whole system for the longtime evolution can be tailed freely, which allows one to observe topological band properties. This approach is referred as Floquet engineering [49][50][51], and has been exploited to simulate the topological toy models such as Haldane and Harper-Hofstadter lattices in artificial systems [21]. Inspired by these studies, we propose a novel method to realize synthetic magnetism in the phonon systems ...

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The 2019 surface acoustic waves roadmap

Cited by 295 publications

References 182 publications

Acoustic ferromagnetic resonance and spin pumping induced by surface acoustic waves

Acoustic ferromagnetic resonance and spin pumping induced by surface acoustic waves

Yttrium Iron Garnet Thickness Influence on the Spin Pumping in the Bulk Acoustic Wave Resonator

Generating synthetic magnetism via Floquet engineering auxiliary qubits in phonon-cavity-based lattice

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