Abstract
Intratube quantum dots showing particle-in-a-box-like states with level spacings up to 200 meV are realized in metallic single-walled carbon nanotubes by means of low dose medium energy Ar+ irradiation. Fourier-transform scanning tunneling spectroscopy compared to results of a Fabry-Perot electron resonator model yields clear signatures for inter- and intravalley scattering of electrons confined between consecutive irradiation-induced defects (interdefects distance ≤10nm). Effects arising from lifting the degeneracy of the Dirac cones within the first Brillouin zone are also observed.
| Original language | English |
|---|---|
| Article number | 245505 |
| Journal | Physical Review Letters |
| Volume | 102 |
| Issue number | 24 |
| DOIs | |
| State | Published - Jun 19 2009 |
| Externally published | Yes |