Effects of the thickness asymmetry of nanostructured exchange-coupled trilayers on their dynamic magnetization switching

K. S. Kim, K. J. Lee, S. H. Lim

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The effects of thickness asymmetry (Δt) on the dynamic magnetization switching of exchange-coupled trilayers are investigated in this study. Elliptical thin films that have lateral dimensions of 200×100 nm 2 are considered. A significant difference in the dynamic switching behavior is observed depending on Δt. Both the switching field and the switching time decrease as Δt increases. A Fourier analysis of the magnetization oscillation, which is followed by the initial coherent rotation, shows multiple oscillation frequencies. This tendency is more pronounced at a larger Δt. The main oscillation frequency tends to increase with an increase in Δt.

Original languageEnglish
Article number152507
JournalApplied Physics Letters
Volume93
Issue number15
DOIs
Publication statusPublished - 2008

Bibliographical note

Funding Information:
This work was supported by the Korea Science and Engineering Foundation (KOSEF) through the National Research Laboratory program funded by the Korean Ministry of Science and Technology (Project No. M10600000198-06J0000-19810).

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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