Abstract
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.
Original language | English |
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Pages (from-to) | 2048-2055 |
Number of pages | 8 |
Journal | Japanese journal of applied physics |
Volume | 47 |
Issue number | 4 PART 1 |
DOIs | |
Publication status | Published - 2008 Apr 18 |
Keywords
- Carbon nanotubes
- Electronic property
- Encapsulation
- Magnetic property
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)