A GHz Operating CMOS Compatible ScAlN Based SAW Resonator Used for Surface Acoustic Waves/Spin Waves Coupling

Zdru, I.; Nastase, C.; Hess, L. N.; Ciubotaru, Florin; Nicoloiu, Alexandra; Vasilache, D.; Dekkers, Matthijn; Geilen, Moritz; Ciornei, M. C.; Boldeiu, G.; Dinescu, Adrian; Adelmann, Christoph; Weiler, Mathias; Pirro, Philipp; Müller, A.

doi:10.1109/led.2022.3196101

Cited by 5 publications

(1 citation statement)

References 19 publications

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“…ScAlN is a novel ultra-wide bandgap material, still in research, representing a potential solution for the next generation of wireless standards (above 5G communication systems) which targets higher frequencies [7]. Although ScAlN has not yet a mature technology, the high resonance frequencies and the excellent piezoelectric properties of this material are an advantage for future hybrid spin wave CMOS circuits [12]. The very good piezoelectric properties of ScAlN could also have a major impact in temperature sensors.…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis of Rayleigh and Sezawa Modes Resonance Frequencies in SAW Devices Manufactured on Sc₀.₃Al₀_.₇N/Si^†

Nicoloiu,

Boldeiu,

Nastase

et al. 2024

IEEJ Transactions Elec Engng

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GHz operating single port SAW resonators have been manufactured on Sc0.3Al0.7N/Si substrate. The thickness of the ScAlN thin layer was 0.8 μm. Advanced nano‐lithographic techniques have been developed for devices manufacturing. Rayleigh and Sezawa modes have been evidenced on Sc0.3Al0.7N/Si structure. The targeted applications are temperature sensors for harsh environmental operations. The sensitivity and temperature coefficient of frequency (TCF) of the manufactured devices have been experimentally determined and analyzed. The mode shapes of the resonances that appear in the devices supported on Sc0.3Al0.7N/Si substrate were evidenced by finite element method (FEM) simulations. A technique that combines FEM with Coupling of Modes (COM) was used for the determination of the resonance frequencies. Simulations performed for the temperature dependence of the resonance frequency led to results close to the experimental ones for the Rayleigh mode as well as for the Sezawa mode for devices supported on Sc0.3Al0.7N/Si substrate. © 2024 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.

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Section: Introductionmentioning

confidence: 99%

Experimental Analysis of Rayleigh and Sezawa Modes Resonance Frequencies in SAW Devices Manufactured on Sc₀.₃Al₀_.₇N/Si^†

Nicoloiu,

Boldeiu,

Nastase

et al. 2024

IEEJ Transactions Elec Engng

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Magnetoelectric coupling in Ba:Pb(Zr,Ti)O3/Co40Fe40B20 nanoscale waveguides studied by propagating spin-wave spectroscopy

Narducci,

Wu,

Boventer

et al. 2024

Applied Physics Letters

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In this study, we report on the characterization of the magnetoelectric coupling coefficient in Ba-substituted Pb(Zr, Ti)O3/Co40Fe40B20 (BPZT/CoFeB) nanoscaled waveguides with lateral dimensions of 700 nm using propagating spin-wave spectroscopy. The characterization was conducted in a Damon–Eshbach configuration to maximize the magnetoelastic coupling strength, as predicted by strain distribution calculations using finite element simulations. The spin-wave resonance frequency is controlled by applying bias voltages on the magnetoelectric waveguide. The magnitude of the frequency shift was correlated with the strength of the magnetoelastic field, which reached a maximum value of 5.71 mT in our experiments. In addition, the results demonstrated that the coupling coefficient behavior is associated with the hysteretic ferroelectric nature of BPZT, reaching a maximum value of 1.69 mT/V.

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Injection locking in DC-driven spintronic vortex oscillators via surface acoustic wave modulation

Moukhader,

Rodrigues,

Riveros

et al. 2024

Journal of Applied Physics

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Control of the microwave signal generated by spin-transfer torque oscillators (STOs) is crucial for their applications in spin wave generation and neuromorphic computing. This study investigates injection locking of a DC-driven vortex STO using surface acoustic waves (SAWs) to enhance the STO’s signal and allow for its synchronization with external inputs. We employ a simplified model based on Thiele’s formalism and highlight the role of vortex deformations in achieving injection locking. Micromagnetic simulations are conducted to validate our theoretical predictions, revealing how the locking bandwidth depends on SAW amplitude, as well as on the amplitude and direction of an applied external field. Our findings are pivotal for advancing experimental research and developing efficient low-power synchronization methods for large-scale STO networks.

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A GHz Operating CMOS Compatible ScAlN Based SAW Resonator Used for Surface Acoustic Waves/Spin Waves Coupling

Cited by 5 publications

References 19 publications

Experimental Analysis of Rayleigh and Sezawa Modes Resonance Frequencies in SAW Devices Manufactured on Sc₀.₃Al₀_.₇N/Si^†

Experimental Analysis of Rayleigh and Sezawa Modes Resonance Frequencies in SAW Devices Manufactured on Sc₀.₃Al₀_.₇N/Si^†

Magnetoelectric coupling in Ba:Pb(Zr,Ti)O3/Co40Fe40B20 nanoscale waveguides studied by propagating spin-wave spectroscopy

Injection locking in DC-driven spintronic vortex oscillators via surface acoustic wave modulation

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A GHz Operating CMOS Compatible ScAlN Based SAW Resonator Used for Surface Acoustic Waves/Spin Waves Coupling

Cited by 5 publications

References 19 publications

Experimental Analysis of Rayleigh and Sezawa Modes Resonance Frequencies in SAW Devices Manufactured on Sc0.3Al0.7N/Si†

Experimental Analysis of Rayleigh and Sezawa Modes Resonance Frequencies in SAW Devices Manufactured on Sc0.3Al0.7N/Si†

Magnetoelectric coupling in Ba:Pb(Zr,Ti)O3/Co40Fe40B20 nanoscale waveguides studied by propagating spin-wave spectroscopy

Injection locking in DC-driven spintronic vortex oscillators via surface acoustic wave modulation

Contact Info

Product

Resources

About

Experimental Analysis of Rayleigh and Sezawa Modes Resonance Frequencies in SAW Devices Manufactured on Sc₀.₃Al₀_.₇N/Si^†

Experimental Analysis of Rayleigh and Sezawa Modes Resonance Frequencies in SAW Devices Manufactured on Sc₀.₃Al₀_.₇N/Si^†