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Interactions and switching behavior of anisotropic magnetic dots

Authors :
Sorge, Kory D.
Kashyap, Arti
Skomski, Ralph
Yue, Lanping
Gao, L.
Kirby, Roger D.
Liou, Sy_Hwang
Sellmyer, David J.
Sorge, Kory D.
Kashyap, Arti
Skomski, Ralph
Yue, Lanping
Gao, L.
Kirby, Roger D.
Liou, Sy_Hwang
Sellmyer, David J.
Source :
Roger Kirby Publications
Publication Year :
2004

Abstract

The magnetic properties of collections of three soft magnetic nanodots with various aspect ratios are investigated. Permalloy films are first produced by dc magnetron sputtering. Focused ion beam milling is then used to mill dots, each with different shape anisotropy. We find that each of the three dots in the system has a unique switching field, and that there is significant magnetostatic coupling. Micromagnetic simulations suggest that for dot separations of less than 50 nm there exists strong interdot interaction, leading to the possibility of controlled switching of neighboring dots. This switching behavior is of interest in magnetic information processing.

Details

Database :
OAIster
Journal :
Roger Kirby Publications
Notes :
application/pdf
Publication Type :
Electronic Resource
Accession number :
edsoai.on1143718012
Document Type :
Electronic Resource