Confined spin-wave characteristics in magnetic nanowire ensembles approaching the ultrathin regime

Abhijit Ghosh, Abhishek Talapatra, Sarjoosing Goolaup, Sze Ter Lim

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

8 Lataukset (Pure)

Abstrakti

We present a comprehensive study on the high-frequency magnetization dynamics of homogeneously patterned ultrathin magnetic nanowire arrays. The backward volume magnetostatic spin-wave (BVMSW) and Damon-Eshbach (DE) configurations are studied along with the intermediate transition states to understand the edge mode’s evolution in depth. We find at the sub-10-nm ultrathin regime the dynamics are heavily influenced by geometrical parameters such as magnetic layer thickness (tFM), demagnetization factors, and interfaces. Critical entities such as field separation δH between uniform to edge mode increase linearly with 1/tFM, while the edge saturation field Hedgesat increase monotonically with increasing tFM, revealing excellent agreement between findings from experimental and micromagnetic simulations. The dynamics are less sensitive to the width of the nanowire but very sensitive to the adjacent material or the interface of the ferromagnet, especially at the ultrathin limits.

AlkuperäiskieliEnglanti
Artikkeli044034
Sivut1-11
Sivumäärä11
JulkaisuPhysical Review Applied
Vuosikerta20
Numero4
DOI - pysyväislinkit
TilaJulkaistu - lokak. 2023
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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