Propagation of spectrally narrow spin-wave packets in ferromagnetic plates

Journal Article · Sun Nov 01 04:00:00 EST 1987 · Radiophys. Quantum Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF01035303· OSTI ID:5235484

Lukomskii, V P; Sedletskii, Yu V

The propagation of spectrally narrow spin-wave packets in ferromagnetic plates in the regimes of a finite-duration pulse or a stationary beam with bounded transverse dimensions is studied on the basis of linear-response theory. The corresponding model equations are obtained for the complex amplitude of the envelope of the packet, describing the effects of dispersion of the pulse and diffraction of the beam in an anisotropic medium to arbitrary order in the small spectral parameter. The character of the solutions is studied in the case of a cubic approximation to the dispersion law, and the conditions for the applicability of the parabolic equation usually employed in such problems are determined. The results of numerical and analytic study of the characteristic features of the evolution of the complex envelope are presented for packets of surface magnetostatic waves in a tangentially magnetized plate.

• OSTI ID: 5235484
• Journal Information: Radiophys. Quantum Electron. (Engl. Transl.); (United States), Journal Name: Radiophys. Quantum Electron. (Engl. Transl.); (United States) Vol. 30:5; ISSN RPQEA
• Country of Publication: United States
• Language: English

Related Subjects

645201* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- General & Scattering Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BEAM OPTICS
BOUNDARY CONDITIONS
COHERENT SCATTERING
DIFFERENTIAL EQUATIONS
DIFFRACTION
DISPERSION RELATIONS
EQUATIONS
FERROMAGNETIC MATERIALS
FOCUSING
KORTEWEG-DE VRIES EQUATION
MAGNETIC FIELDS
MAGNETIC MATERIALS
MATERIALS
MATHEMATICAL MODELS
PARTIAL DIFFERENTIAL EQUATIONS
PULSES
SCATTERING
SPIN WAVES
WAVE PACKETS
WAVE PROPAGATION