The current-driven excitation of spin-waves in a one-dimensional magnetic waveguide is examined analytically and numerically. The proposed model accounts for the interference between incident and reflected waves caused by the finite sizes of the physical domain. This effect is relevant in experiments where the demand of miniaturization leads the spin-wave decay length to be of the same scale as the extents of the structures. Particular analytical solutions of the linearized equation for the spin-wave amplitude are found for elongated and contracted nanocontacts. These solutions are compared to those of an infinite waveguide and are also successfully validated through micromagnetic simulations.
Spin-transfer-driven spin-waves excitation in a finite-size magnetic waveguide
CONSOLO, Giancarlo
Primo
Investigation
;CURRO', CarmelaSecondo
Investigation
;VALENTI, GiovannaUltimo
Investigation
2015-01-01
Abstract
The current-driven excitation of spin-waves in a one-dimensional magnetic waveguide is examined analytically and numerically. The proposed model accounts for the interference between incident and reflected waves caused by the finite sizes of the physical domain. This effect is relevant in experiments where the demand of miniaturization leads the spin-wave decay length to be of the same scale as the extents of the structures. Particular analytical solutions of the linearized equation for the spin-wave amplitude are found for elongated and contracted nanocontacts. These solutions are compared to those of an infinite waveguide and are also successfully validated through micromagnetic simulations.File | Dimensione | Formato | |
---|---|---|---|
physics letters a.pdf
solo gestori archivio
Tipologia:
Versione Editoriale (PDF)
Licenza:
Tutti i diritti riservati (All rights reserved)
Dimensione
768.72 kB
Formato
Adobe PDF
|
768.72 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.