Micromagnetics simulation of asymmetric pseudo-spin valve dots

N. Dao, C. A. Ross, F. J. Castaño, M. J. Donahue, S. L. Whittenburg

Research output: Contribution to journalConference articlepeer-review

Abstract

We present simulation results for Ni79Fe21 (5 nm)/Cu (3 nm)/Co (4 nm) pseudo-spin valves. These simulations have been conducted on several different aspect ratios of rectangular dots. Distinct switches of the two magnetic layers were observed. At smaller aspect ratios, magnetization reversal proceeds through a leaf state in the soft layer and a flower state in the hard layer. For larger aspect ratios, reversal proceeds by nucleation and annihilation of domain walls. Our simulations show a reasonable agreement with the experimental results. Differences between the experimental and simulation results are discussed.

Original languageEnglish
Pages (from-to)291-296
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume731
DOIs
StatePublished - 2002
EventModeling and Numerical Simulation of Materials Behavior and Evolution - San Francisco, CA, United States
Duration: Apr 2 2002Apr 5 2002

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