Magnon decay
WebThe Dewey Cannon is an antique Spanish bronze cannon. Currently, it is a Michigan registered historic site located in Three Oaks in the U.S. state of Michigan. Originally … WebApr 10, 2024 · γ m is the magnon decay rate and κ the total microwave decay. The value and the sign of the magnomechanical decay rate depend on the drive frequency , which can tune scattering
Magnon decay
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WebMagnon Pairing, Interactions, and Decay in the Spin-orbital Magnet FeI Martin Mourigal, Georgia Tech - YouTube Magnon Pairing, Interactions, and Decay in the Spin-orbital Magnet FeI Martin... WebMay 8, 2024 · Magnonics is a technology for low-power signal transmission and data processing based on the propagation of spin-waves (magnons) in magnetic materials [72,78,79,106]. They have spin angular...
In summary, our work has demonstrated long-distance magnon propagation in BFO/LSMO heterostructures. This is realized by the magnon–phonon coupling at the BFO/LSMO interface. As revealed by the AR-PSWS measurements, the pure magnon mode in LSMO shows a short decay length of ~5 µm, … See more The BFO/LSMO bilayer is grown on a NdGaO3 (NGO) substrate. The transmission electron microscope (TEM) characterization of the BFO/LSMO interface is … See more The coherent spin waves excited by NSL antennas have a non-zero wavevector distribution \(\triangle k\), and thus the propagation over a certain distance \(d\) … See more If the NSL antennas are replaced by coplanar waveguide (CPW) antennas5,8,46 (e.g., Sample Z15), the excitation is known to exhibit a specific wavevector … See more The transmission amplitude of mode Y is found to decay exponentially and a fitting yields a magnon decay length \({\lambda }_{{{{{{\rm{m}}}}}}}=5\,{{\upmu … See more WebJun 23, 2014 · We calculate magnon lifetime in an easy-plane ferromagnet on a tetragonal lattice in transverse magnetic field. At zero temperature magnons are unstable with respect to spontaneous decay into two ...
WebWe discuss threshold field-dependence of the decay rate of the uniform magnon mode in yttrium iron garnet (YIG) thin films. We demonstrate that decays must cease to exist in … WebSep 18, 2024 · This result has several very important implications: we have found that magnons decay to their thermal equilibrium with a single exponential rate and we have found an analytical expression for this decay rate for any magnon with a given wave vector and any given spatial noise correlation function .
Webinduced magnon decays and associated singularities is pre-sented in Sec. III. The self-consistent theory is described in Sec. IV, where the results for the dynamical structure factor are also included. Section V contains our conclusions. The asymptotic form for the decay rate of low-energy magnons is derived in Appendix A and an extension of ...
WebApr 12, 2024 · There is a saddle point in energy; i.e., magnons have anisotropic mass. The mass is positive and negative for magnons moving across and along the magnetic field, respectively. Therefore, a channel for the decay of magnons into spin waves with k directed along the field, which have a lower energy, arises for the in-plane magnetization. … purpose of laundry softenerWebDec 20, 2013 · In the magnon decay process, D (q, E q ) is the number of possible decay channels, with a single magnon at (q, E q ) decaying into two magnons with the kinematic constraint of E q = E k − E... purpose of large mining equipmentWebRecently, magnon excitations have been explored as a potential route to realizing analogues of the topological band structures that have become ubiquitous in electronic … security federal north augusta scWebMay 15, 2011 · The two-magnon decay processes for easy-plane ferromagnets were theoretically studied in Refs. [15, 16]. Their appearance is determined by two conditions: 11 (i) presence of the cubic vertex in ... purpose of lawWebSep 9, 2024 · The decay of the longitudinal mode is particularly pronounced at the zone center. To account for the many-body effects of the interacting low-energy modes in … purpose of lawn mower relayWebHence, the similarity between Fig. 8.4 (a) and (b) illustrates that the phenomenon of avoided decay is robust, i.e., it is not sensitive to small perturbations. Of course, the difference between an easy-plane and easy-axis anisotropy would affect low-energy properties. In contrast, magnon decay has experimentally been observed in a spin-2 TLHAF ... purpose of ldnWebMay 4, 2016 · In the longitudinal SSE configuration 17, 18, 19, a vertical temperature gradient in YIG drives a magnon current. In the steady state, magnon flow towards the TI/YIG interface is balanced by... purpose of lcce