Voltage induced mechanical/spin wave propagation over long distances

Barra, Anthony; Mal, Ajit; Carman, Gregory P.; Sepulveda, Abdon E.

doi:10.1063/1.4975828

Cited by 48 publications

(30 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The dynamics of the magneto-elastic waves is governed by the coupled Landau-Lifshitz equation for SWs and elastic mechanical equations [2,5] for acoustic waves. Simulations solution of these equations is complicated, and often possible only numerically [33][34][35][36]. However, in almost all the practically important situations the magnetostriction is weak in comparison to the other interactions in a ferromagnet, which allows us to consider the magneto-elastic interaction in the framework of a perturbation theory.…”

Section: Theory Of Weakly-coupled Linear Magneto-elastic Wavesmentioning

confidence: 99%

Nonreciprocal Surface Acoustic Waves in Multilayers with Magnetoelastic and Interfacial Dzyaloshinskii-Moriya Interactions

et al. 2018

View full text Add to dashboard Cite

Surface acoustic waves (SAW) propagating in a piezoelectric substrate covered with a thin ferromagnetic/heavy metal bilayer are found to exhibit a substantial degree of nonreciprocity, i.e. the frequencies of these waves are non-degenerate with respect to the inversion of the SAW propagation direction. The simultaneous action of the magneto-elastic interaction in the ferromagnetic layer and the interfacial Dzyaloshinskii-Moriya interaction (IDMI) in the ferromagnetic/heavy metal interface, results in the openings of magneto-elastic bandgaps in the SAW spectrum, and the frequency position of these bandgaps are different for opposite SAW propagation directions. The bandgap widths and the frequency separation between them can be controlled by a proper selection of the magnetization angle and the thickness of the ferromagnetic layer. Using numerical simulations we demonstrate that the isolation between SAWs propagating in the opposite directions in such a system can exceed the direct SAW propagation losses by more than one order of magnitude.

show abstract

Section: Theory Of Weakly-coupled Linear Magneto-elastic Wavesmentioning

confidence: 99%

Nonreciprocal Surface Acoustic Waves in Multilayers with Magnetoelastic and Interfacial Dzyaloshinskii-Moriya Interactions

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Substituting (4), (6) - (8) in (5) we can get an analytical expression for UISHE, which is then analyzed numerically. 5.17 g/cm 3 [15], b = 4 × 10 6 erg/cm 3 , D =4.46×10 -9 Oe cm 2 , 4πMeff = 955 G [30], H  =0.7Oe; GGG -V (4) = 3.57×10 5 cm/s, ρ (4) = 7.08 g/cm 3 ; ZnO -V (1) = 2.88×10 5 cm/s, ρ (1) = 5.68 g/cm 3 . The layer thicknesses are given in caption to Fig.1 Figures 2 (c), (d) show the frequency dependence of normalized UISHE(f) at H= 740 Oe for two structures, I and II: with two YIG films (II) (Fig.2(c)) and with only one film 5 (I) ( Fig.2(d)).…”

Section: Theorymentioning

confidence: 99%

Acoustic excitation and electrical detection of spin waves and spin currents in hypersonic bulk waves resonator with YIG/Pt system

Polzikova

Alekseev

Luzanov

et al. 2019

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

We report on the self-consisted semi-analytical theory of magnetoelastic excitation and electrical detection of spin waves and spin currents in hypersonic bulk acoustic waves resonator with ZnO-GGG-YIG/Pt layered structure. Electrical detection of acoustically driven spin waves occurs due to spin pumping from YIG to Pt and inverse spin Hall (ISHE) effect in Pt as well as due to electrical response of ZnO piezotransducer. The frequency-field dependences of the resonator frequencies and ISHE voltage UISHE are correlated with experimental ones observed previously.Their fitting allows to determine some magnetic and magnetoelastic parameters of YIG. The analysis of the YIG film thickness influence on UISHE gives the possibility to find the optimal thickness for maximal UISHE value.

show abstract

“…Note that this is not the case for the other SW types. are generated by means of microstrip antennas 33,34 , magnetoelectric cells 35,36 or spin orbit torque 37,38 ). The waveguide is the medium for SW propagation and can be made of different magnetic materials, e.g., Permalloy, Yttrium iron garnet, CoFeB 33 .…”

Section: A Spin-wave Fundamentalsmentioning

confidence: 99%

“…In the functional region, SWs can be amplified, normalized or interfere with other SWs. In the detection stage, the spin wave is captured and converted to the electrical domain via microstrip antennas 33,34 , magnetoelectric cells 35,36 or spin orbit torque 37,38 .…”

Section: A Spin-wave Fundamentalsmentioning

confidence: 99%

4-output Programmable Spin Wave Logic Gate

Mahmoud

Vanderveken

Adelmann

et al. 2020

2020 IEEE 38th International Conference on Computer Design (ICCD)

View full text Add to dashboard Cite

To bring Spin Wave (SW) based computing paradigm into practice and develop ultra low power Magnonic circuits and computation platforms, one needs basic logic gates that operate and can be cascaded within the SW domain without requiring back and forth conversion between the SW and voltage domains. To achieve this, SW gates have to possess intrinsic fanout capabilities, be input-output data representation coherent, and reconfigurable. In this paper, we address the first and the last requirements and propose a novel 4-output programmable SW logic. First, we introduce the gate structure and demonstrate that, by adjusting the gate output detection method, it can parallelly evaluate any 4-element subset of the 2-input Boolean function set {AND, NAND, OR, NOR, XOR, and XNOR} . Furthermore, we adjust the structure such that all its 4 outputs produce SWs with the same energy and demonstrate that it can evaluate Boolean function sets while providing fanout capabilities ranging from 1 to 4. We validate our approach by instantiating and simulating different gate configurations such as 4-output AND/OR, 4-output XOR/XNOR, output energy balanced 4-output AND/OR, and output energy balanced 4-output XOR/XNOR by means of Object Oriented Micromagnetic Framework (OOMMF) simulations. Finally, we evaluate the performance of our proposal in terms of delay and energy consumption and compare it against existing state-of-the-art SW and 16 nm CMOS counterparts.The results indicate that for the same functionality, our approach provides 3× and 16× energy reduction, when compared with conventional SW and 16 nm CMOS implementations, respectively.

show abstract

Voltage induced mechanical/spin wave propagation over long distances

Cited by 48 publications

References 32 publications

Nonreciprocal Surface Acoustic Waves in Multilayers with Magnetoelastic and Interfacial Dzyaloshinskii-Moriya Interactions

Nonreciprocal Surface Acoustic Waves in Multilayers with Magnetoelastic and Interfacial Dzyaloshinskii-Moriya Interactions

Acoustic excitation and electrical detection of spin waves and spin currents in hypersonic bulk waves resonator with YIG/Pt system

4-output Programmable Spin Wave Logic Gate

Contact Info

Product

Resources

About