Quantitative magnetometry analysis and structural characterization of multisegmented cobalt-nickel nanowires

Jesus Cantu-Valle, Enrique Díaz Barriga-Castro, Víctor Vega, Javier García, Raquel Mendoza-Reséndez, Carlos Luna, Víctor Manuel Prida, Kornelius Nielsch, Fernando Mendoza-Santoyo, Miguel Jose-Yacaman, Arturo Ponce

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Understanding and measuring the magnetic properties of an individual nanowire and their relationship with crystalline structure and geometry are of scientific and technological great interest. In this work, we report the localized study of the magnetic flux distribution and the undisturbed magnetization of a single ferromagnetic nanowire that poses a bar-code like structure using off-axis electron holography (EH) under Lorentz conditions. The nanowires were grown by template-assisted electrodeposition, using AAO templates. Electron holography allows the visualization of the magnetic flux distribution within and surroundings as well as its quantification. The magnetic analysis performed at individual nanowires was correlated with the chemical composition and crystalline orientation of the nanowires.

Original languageEnglish (US)
Pages (from-to)294-299
Number of pages6
JournalJournal of Magnetism and Magnetic Materials
Volume379
DOIs
StatePublished - Apr 1 2015
Externally publishedYes

Keywords

  • Electron holography
  • Ferromagnetic nanowires
  • Magnetic flux distribution
  • Magnetic frustration
  • Magnetic imaging

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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