Linear spin wave
Nettet1. jun. 1999 · In Section 3, we develop the linear spin-wave theory on this system. In Section 4, results are given on both one and two dimensional systems. Section 5 is devoted to the conclusion. 2. The model and its symmetries (hypercubic lattice) 2.1. Model Consider a d -dimensional hypercubic lattice, with lattice sites labelled as n= ∑ μ=1 d n … Nettet20. des. 1986 · Spin Pumping by Higher-Order Dipole-Exchange Spin-Wave Modes; Two-dimensional dispersion of magnetostatic volume spin waves; Spin wave propagation in ferromagnetic wires with an arbitrary field direction; The effect of lattice structure on dipole–exchange spin waves in ultrathin ferromagnetic films; The 2024 Magnonics …
Linear spin wave
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Nettet2.4 Wave Propagation in Heterogeneous Media. The propagation of acoustic waves in the subsurface is the key element in seismic imaging. We can model this propagation in … NettetA spin wave is a propagating disturbance in the ordering of a magnetic material. These low-lying collective excitations occur in magnetic lattices with continuous symmetry.From the equivalent quasiparticle point of view, spin waves are known as magnons, which are bosonic modes of the spin lattice that correspond roughly to the phonon excitations of …
Nettet1. des. 2024 · Among all the theoretical methods, linear spin wave theory (LSWT) is a simple but effective method to investigate the magnetism of ordered spin systems in low temperature. Nettet8. mai 2024 · To implement the application, we introduce an efficient general local mean-field method, which involves all local fluctuations, and develop the SU (N) linear spin …
Nettet29. mai 2024 · In the spectroscopy measurements, spin waves are excited by one microwave antenna and inductively detected by a second antenna using a vector network analyzer. The antennas are separated by 12 μm and spin-wave transport over this distance is probed by recording the S 12 scattering parameter. Nettet11. feb. 2024 · The threshold-less non-linear process of short-wavelength spin-wave excitation proposed in our study is promising for integration with an inductive or point-like spin-torque source of edge spin waves. The research leading to these results received funding from the National Science Centre of Poland, ...
Nettet25. feb. 2014 · Linear spin wave theory provides the leading term in the calculation of the excitation spectra of long-range ordered magnetic systems as a function of $1/\sqrt {S}$. This term is acquired using...
Nettetresult in parametrically generated spin waves oscillating at odd half-integer multiples of the driving frequency. Such excitations are not described by the conventional non-linear spin-wave theory. In soft ferromagnets, such as Ni 80Fe 20, these NLSWs are predicted to dom-inate at low bias fields with threshold driving fields below the ones of condos in grays ferryNettetThere are problems at the end of each chapter, many of which serve to expand or explain the material in the text. The bibliographies for each chapter give an entry to the … eddy boy 3Nettet29. apr. 2015 · Linear spin wave theory for single-Q incommensurate magnetic structures J Phys Condens Matter. 2015 Apr 29;27 (16):166002. doi: 10.1088/0953-8984/27/16/166002. Epub 2015 Mar 30. Authors S Toth 1 , B Lake Affiliation 1 Laboratory for Neutron Scattering, Paul Scherrer Institut (PSI), CH-5232 Villigen, Switzerland. condos in grange ohio