Single-wall carbon nanotube (SWCNT) quantum dots have been fabricated on a GaAs/AlGaAs two-dimensional electron gas (2DEG) substrate, and the single electron transport measurements have been carried out at 2.8 K and 22 mK with the 2DEG used as a gate. It was demonstrated that the gating by the 2DEG could be switched on and off by controlling a quantum point contact fabricated between the dot and the Ohmic contact to the 2DEG gate. The unique combination of the SWCNT dot and the 2DEG may open a door to realize flexible hybrid devices.
Published in:
Journal of Applied Physics
(Volume:98
,
Issue:
7
)
Date of Publication:
Oct 2005
- Page(s):
-
076106
-
076106-3
- ISSN :
-
0021-8979
- Digital Object Identifier :
-
10.1063/1.2077841
- Product Type:
-
Journals & Magazines
- Date of Current Version :
-
18 June 2009
- Issue Date :
-
Oct 2005