Coherent elastic excitation of spin waves

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August undefined, 2024

WebDec 2, 2024 · In the emerging field of magnonics, spin waves are foreseen as signal carriers for future spintronic information processing and communication devices, owing to both the very low power losses and a high device miniaturization potential predicted for short-wavelength spin waves. WebAug 26, 2024 · The excitation, detection, and utilization of coherent and non-coherent spin waves on various modes in V(TCNE) x is demonstrated and show that the angular momentum carried by microwave-excited coherent spin waves in a V(TCNE) x film can be transferred into an adjacent Pt layer via spin pumping and detected using the inverse …

Excitation of coherent propagating spin waves by pure spin cur…

Webform of bulk acoustic waves (BAWs), and spin waves, and ac-cordingly the formation of hybrid magneto-elastic waves has been studied extensively already in the 1950s and 1960s. As theoretically suggested by Kittel [5] the excitation of BAWs by spin waves [6] and conversely the excitation of spin waves by BAWs has been demonstrated [7]. WebLongitudinal and surface acoustic waves are measured in BK-7 glass, diamond, and Bi4Ge3O12; in the latter material, the excitation of a coherent optical phonon mode is also observed. adnoc supplier login

Coherent elastic excitation of spin waves – arXiv Vanity

WebJun 1, 2024 · The acoustic waves (AW) and spin waves (SW) coupling, caused by linear magnetostriction, is most significant under the condition of the phase synchronism, i.e. at magnetoelastic resonance (MER). As far as MER frequency generally lies in the gigahertz range [15] the generation of hypersonic AW is required. WebMay 26, 2024 · uum of spin excitation modes (Fig. 1) [5]. This problem is even more complex when an antiferromagnet is inserted be-tween the spin injector and the spin detector, as the magnetic excitations in antiferromagnets typically have THz frequen- ... ‘‘Spin pumping with coherent elastic waves,’’ ... WebDec 18, 2014 · Coherent elastic excitation of spin waves. We model the injection of elastic waves into a ferromagnetic film (F) by a non-magnetic transducer (N). We compare … jr目黒駅みどりの窓口

The Interaction between Surface Acoustic Waves and Spin

Coherent Excitation of Heterosymmetric Spin Waves with …

WebJul 14, 2024 · Using the experimental results and equations of motion for spins, we show that the mechanism of the spin excitation above and below the Morin point relies on a magnetic-dipole interaction of the THz magnetic field with spins, and the mechanism implies that the efficiency of the coupling is proportional to the time derivative of the magnetic field. WebJan 1, 2024 · Studies of the coupling of elastic waves with other wave excitations, including spin waves, in nanostructures are experiencing a revival, which is mostly due to the … jr 直前割きっぷWebOct 23, 2024 · Using spin-wave tomography (SWaT), we have investigated the excitation and the propagation dynamics of optically excited magnetoelastic waves, i.e., hybridized … adnoc supplier prequalification

"WebMar 21, 2024 · In the emerging field of magnonics, spin waves are foreseen as signal carriers for future spintronic information processing and communication devices, owing to … " - Coherent elastic excitation of spin waves

Coherent elastic excitation of spin waves

WebMar 10, 2024 · Abstract In magnon spintronics is fundamental that magnons can propagate over large distances to allow spin flux or information to be processed. We investigate through micromagnetic simulations... WebOct 6, 2011 · We show that the resonant coupling of phonons and magnons can be exploited to generate spin currents at room temperature. Surface acoustic wave (SAW) pulses with a frequency of 1.55 GHz and duration of 300 ns provide coherent elastic waves in a ferromagnetic thin film/normal metal (Co/Pt) bilayer.

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WebDec 3, 2024 · The simulations show that, despite high Gilbert damping characteristic of cobalt ferrite, the injected elastic waves with frequencies around the resonance frequency of coherent magnetization precession in unstrained CoFe2O4film efficiently generate spin waves in this ferrimagnetic insulator. WebOct 23, 2024 · By using time-resolved SWaT, we reveal the excitation dynamics of magnetoelastic waves through coherent-energy transfer between optically-excited pure-elastic waves and spin waves via magnetoelastic coupling.

WebAug 28, 2006 · Elastic differential, integral and momentum transfer cross sections are obtained by summing over rotationally elastic and rotationally inelastic cross sections for rotor states up to J = 4. The excitation cross sections from the ground state of C 3 , at its equilibrium geometry, to its nine low-lying electronically excited states are also ... WebJan 28, 2016 · Here, we experimentally demonstrate efficient excitation and directional propagation of coherent spin waves generated by pure spin current. We show that this …

WebPDF - We model the injection of elastic waves into a ferromagnetic film (F) by a nonmagnetic transducer (N). We compare the configurations in which the magnetization is normal and parallel to the wave propagation. The lack of axial symmetry in the former results in the emergence of evanescent interface states. We compute the energy-flux … WebApr 7, 2024 · The non-resonant continuous wave laser excitation of a polariton BEC in an individual trap of a trap array, induces coherent mechanical self-oscillation, leading to the formation of spectral ...

WebMay 26, 2024 · A spin current generated by spin pumping should have a single wave mode, carrying the fingerprint of the coherent magnetization excitation in the injector. But spin currents can also be generated by thermal gradients, which produce incoherent currents with a continuum of spin excitation modes (Fig. 1 ) [ 5 ].

jr直方駅から小倉駅WebJun 1, 2024 · The acoustic waves (AW) and spin waves (SW) coupling, caused by linear magnetostriction, is most significant under the condition of the phase synchronism, i.e. at … jr目黒駅ランチWebApr 13, 2024 · The Higgs boson decays too rapidly to be spotted and was a particle with no spin. During the excitation of the Higgs field by the wave phase, both the Higgs bosons … ad notWebJul 29, 2024 · Fig. 1: All-optical generation and detection of coherent AFM spin waves. a, Schematic of the generation of propagating AFM spin waves after optical pumping. The … adn odessa collegeWebCoherent elastic excitation of spin waves Akashdeep Kamra1, Hedyeh Keshtgar2, Peng Yan1, and Gerrit E. W. Bauer3;1 1Kavli Institute of NanoScience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands 2Institute for Advanced Studies in Basic Science, 45195 Zanjan, Iran and 3Institute for Materials Research and WPI … ad non executa confirmationWebNotably, by tuning the magnitude of an externally applied magnetic field, optically excited surface acoustic waves can selectively excite either the upper or lower branches of a splitting in the nanowire's spin wave spectrum, which micromagnetic simulations indicate to be caused by localization of spin waves in different parts of the nanowire. jr直方駅から博多駅WebWe model the injection of elastic waves into a ferromagnetic film (F) by a nonmagnetic transducer (N). We compare the configurations in which the magnetization is normal and … jr 直通とは