Magnetic anisotropy evolution in CoFe/Au barcode nanowire arrays

Bum Chul Park, Bong Gun Kim, Hyo Won Seo, Young-geun Kim

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Owing to their multifunctional properties, multisegmented metallic nanowires have generated interest for potential applications in magnetics and biology. In this paper, we present the magnetic properties of Co 50Fe50/Au barcode nanowire arrays with CoFe and Au segments of various diameters and thicknesses. The distinct anisotropic behavior and magnetization reversal process depending upon these geometric factors were investigated. As the diameter increased (50-200 nm), the easy-axis direction changed from parallel (//) to perpendicular (⊥) to the nanowire axis. As the intersegment spacing increased (tAu = 50 - 200 nm), the easy-axis direction tended to lie in the plane of the nanowires. In addition, we examined the changes in the magnetization reversal modes.

Original languageEnglish
Article number2279278
JournalIEEE Transactions on Magnetics
Volume50
Issue number1
DOIs
Publication statusPublished - 2014 Jan 1

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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