Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/101875
Title: Excitation and control of large-amplitude standing magnetization waves
Authors: Friedland, L.
Shagalov, A. G.
Issue Date: 2019
Publisher: American Physical Society
Citation: Friedland L. Excitation and control of large-amplitude standing magnetization waves / L. Friedland, A. G. Shagalov. — DOI 10.1103/PhysRevB.99.014411 // Physical Review B. — 2019. — Vol. 99. — Iss. 1. — 014411.
Abstract: A robust approach to excitation and control of large amplitude standing magnetization waves in an easy axis ferromagnetic by starting from a ground state and passage through resonances with chirped frequency microwave or similar alternative drives (spin torque, additional periodic anisotropy) is proposed. The formation of these waves involves two stages, where in the first stage, a spatially uniform, precessing magnetization is created via passage through a resonance followed by a self-phase-locking (autoresonance) with a constant amplitude drive. In the second stage, the passage through an additional resonance with a spatial modulation of the driving amplitude yields transformation of the uniform solution into a doubly phase-locked standing wave, whose amplitude is controlled by the variation of the driving frequency. The stability of this excitation process is analyzed both numerically and via Whitham's averaged variational principle. © 2019 American Physical Society.
Keywords: GROUND STATE
LOCKS (FASTENERS)
MAGNETIZATION
OPTICAL PARAMETRIC OSCILLATORS
RESONANCE
CONSTANT AMPLITUDE
DRIVING FREQUENCIES
EXCITATION PROCESS
MAGNETIZATION WAVES
ROBUST APPROACHES
SELF-PHASE LOCKING
SPATIAL MODULATIONS
VARIATIONAL PRINCIPLES
EXCITED STATES
URI: http://hdl.handle.net/10995/101875
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85059865054
PURE ID: 8866161
a845347e-a229-4c7a-b674-85ff0e5d51ec
ISSN: 24699950
DOI: 10.1103/PhysRevB.99.014411
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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