Journal
PHYSICAL REVIEW LETTERS
Volume 102, Issue 19, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.195504
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Funding
- EPSRC [GR/S82176/01, GR/S15808/01]
- Sasakawa fund
- Glasstone fund
- Brasenose College
- EPSRC [EP/D074398/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [GR/S15808/01, EP/D074398/1, GR/S82176/01] Funding Source: researchfish
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Peapods containing La@C-82 metallofullerenes are transformed into double-walled carbon nanotubes (DWNTs) using in situ electron beam irradiation at 80 kV. Using this low accelerating voltage we find no damage to the outer single-walled carbon nanotube (SWNT) within this time period and the complete formation of an inner nanotube within 5-7 min of irradiation. The La metal atoms are restricted to the interior of the inner SWNT and remain trapped. We demonstrate that energy from electron beam irradiation can drive the lateral confined motion of single La atoms. The interplay between two La atoms confined within the interior of a DWNT is examined and we find large La-La separation unique to this 1D environment. We also demonstrate the formation of TWNTs from DWNT peapods.
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