Novel Properties of Single-Walled Carbon Nanotubes with Encapsulated Magnetic Atoms
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概要
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This paper focuses on the study of single-walled carbon nanotubes (SWNTs) filled with magnetic Fe nanoparticles. The magnetic properties of Fe-filled SWNTs are measured at various temperatures, and the results indicate that they exhibit a ferromagnetic characteristic at room temperature and superparamagnetic properties at low temperatures. In addition, the electrical transport properties of Fe-filled SWNTs are examined, and the results demonstrate that their electronic properties depend on the filling level of the encapsulated Fe particles. It is found that Fe-filled SWNTs can exhibit high-performance unipolar n-type semiconducting characteristics at high filling levels and p–n junction diode behavior at low filling levels.
- 2008-04-25
著者
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Hatakeyama Rikizo
Department Of Electronic Engineering Tohoku University
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Ogawa Tomoyuki
Department Of Neurosurgery National Hospital Organization Fukuyama Medical Center
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Kaneko Toshiro
Department Of Electronic Engineering Tohoku University
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Li Yongfeng
Department Of Electronic Engineering Tohoku University
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Takahashi Migaku
Department Of Electronic Engineering Graduate School Of Engineering Tohoku University
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Li Yongfeng
Department of Electronic Engineering, Tohoku University, Sendai 980-8579, Japan
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Ogawa Tomoyuki
Department of Electronic Engineering, Tohoku University, Sendai 980-8579, Japan
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Takahashi Migaku
Department of Electronic Engineering, Tohoku University, Sendai 980-8579, Japan
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Ogawa Tomoyuki
Department of Electronic Engineering, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
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