Fabrication and magnetic characteristics of hybrid double walled nanotube of ferromagnetic nickel encapsulated conducting polypyrrole

D. H. Park, Y. B. Lee, M. Y. Cho, B. H. Kim, S. H. Lee, Y. K. Hong, Jinsoo Joo, H. C. Cheong, Seong Rae Lee

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

This letter is a report on hybrid double walled nanotubes (HDWNTs) of crystalline ferromagnetic nickel (Ni) nanotubes encapsulated conducting polypyrrole (PPy) nanotubes through a sequentially electrochemical synthetic method. Ferromagnetic Ni nanotubes were fabricated by an electrochemical deposition method outside the wall of the conducting PPy nanotubes. The formation and structure of HDWNTs of conducting PPy nanotubes and ferromagnetic Ni nanotubes were confirmed by transmission electron microscopy, high-resolution transmission electron microscopy, and elementary analysis. From the angular dependences of the magnetic hysteresis curves of the HDWNTs, the authors observed that the Ni nanotubes of the HDWNT systems had an anisotropic ferromagnetic nature with the maximum of coercivity and remanent-saturation magnetization when applying a magnetic field along the parallel direction of the tubes.

Original languageEnglish
Article number093122
JournalApplied Physics Letters
Volume90
Issue number9
DOIs
Publication statusPublished - 2007 Mar 9

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polypyrroles
nanotubes
nickel
conduction
fabrication
transmission electron microscopy
coercivity
hysteresis
tubes
saturation
magnetization

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Fabrication and magnetic characteristics of hybrid double walled nanotube of ferromagnetic nickel encapsulated conducting polypyrrole. / Park, D. H.; Lee, Y. B.; Cho, M. Y.; Kim, B. H.; Lee, S. H.; Hong, Y. K.; Joo, Jinsoo; Cheong, H. C.; Lee, Seong Rae.

In: Applied Physics Letters, Vol. 90, No. 9, 093122, 09.03.2007.

Research output: Contribution to journalArticle

Park, D. H. ; Lee, Y. B. ; Cho, M. Y. ; Kim, B. H. ; Lee, S. H. ; Hong, Y. K. ; Joo, Jinsoo ; Cheong, H. C. ; Lee, Seong Rae. / Fabrication and magnetic characteristics of hybrid double walled nanotube of ferromagnetic nickel encapsulated conducting polypyrrole. In: Applied Physics Letters. 2007 ; Vol. 90, No. 9.
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