Microstructure and local magnetic induction of segmented and alloyed Pd/Co nanocomposites encapsulated inside vertically aligned multiwalled carbon nanotubes

Yasuhiko Hayashi, T. Fujita, T. Tokunaga, Kenji Kaneko, M. Tanemura, T. Butler, N. Rupesinghe, J. D. Carey, S. R.P. Silva, K. B.K. Teo, G. A.J. Amaratunga

研究成果: ジャーナルへの寄稿記事

2 引用 (Scopus)

抄録

We have successfully synthesized the Co/Pd magnetic and nonmagnetic multisegment nanowires encapsulated inside multiwalled carbon nanotubes (MWCNTs) by using Co and Pd thin-layers deposited on Si substrate by microwave plasma enhanced chemical vapor deposition. Energy dispersive X-ray spectroscopy revealed that MWCNTs were encapsulated with Co and Pd nanowires, separately, at the tube top and the bottom of Co nanowire, respectively. The face-centered-cubic (fcc) structure of Co nanowires was confirmed by a selected area diffraction pattern. We proposed a fruitful description for the encapsulating mechanisms of both Co and Pd multisegment nanowires. The component of magnetic induction from Co region, not Pd region, was then estimated to be 1.2 ± 0.1 T, based on results of off-axis electron holography, which is lower than the expected saturation magnetization of fcc bulk Co of 1.7 T. We proposed a fruitful description for the mechanisms of reduced magnetic induction from Co nanowires.

元の言語英語
ページ(範囲)1525-1528
ページ数4
ジャーナルDiamond and Related Materials
17
発行部数7-10
DOI
出版物ステータス出版済み - 7 1 2008

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Electromagnetic induction
Multiwalled carbon nanotubes (MWCN)
Nanowires
Nanocomposites
Microstructure
Electron holography
Saturation magnetization
Plasma enhanced chemical vapor deposition
Diffraction patterns
Microwaves
Substrates

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Chemistry(all)
  • Mechanical Engineering
  • Materials Chemistry
  • Electrical and Electronic Engineering

これを引用

Microstructure and local magnetic induction of segmented and alloyed Pd/Co nanocomposites encapsulated inside vertically aligned multiwalled carbon nanotubes. / Hayashi, Yasuhiko; Fujita, T.; Tokunaga, T.; Kaneko, Kenji; Tanemura, M.; Butler, T.; Rupesinghe, N.; Carey, J. D.; Silva, S. R.P.; Teo, K. B.K.; Amaratunga, G. A.J.

:: Diamond and Related Materials, 巻 17, 番号 7-10, 01.07.2008, p. 1525-1528.

研究成果: ジャーナルへの寄稿記事

Hayashi, Y, Fujita, T, Tokunaga, T, Kaneko, K, Tanemura, M, Butler, T, Rupesinghe, N, Carey, JD, Silva, SRP, Teo, KBK & Amaratunga, GAJ 2008, 'Microstructure and local magnetic induction of segmented and alloyed Pd/Co nanocomposites encapsulated inside vertically aligned multiwalled carbon nanotubes', Diamond and Related Materials, 巻. 17, 番号 7-10, pp. 1525-1528. https://doi.org/10.1016/j.diamond.2008.03.012
Hayashi, Yasuhiko ; Fujita, T. ; Tokunaga, T. ; Kaneko, Kenji ; Tanemura, M. ; Butler, T. ; Rupesinghe, N. ; Carey, J. D. ; Silva, S. R.P. ; Teo, K. B.K. ; Amaratunga, G. A.J. / Microstructure and local magnetic induction of segmented and alloyed Pd/Co nanocomposites encapsulated inside vertically aligned multiwalled carbon nanotubes. :: Diamond and Related Materials. 2008 ; 巻 17, 番号 7-10. pp. 1525-1528.
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AU - Kaneko, Kenji

AU - Tanemura, M.

AU - Butler, T.

AU - Rupesinghe, N.

AU - Carey, J. D.

AU - Silva, S. R.P.

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