1D-1D tunneling between vertically coupled GaAs/AlGaAs quantum wires.
Conference
·
OSTI ID:959256
We report low-dimensional transport and tunneling in an independently contacted vertically coupled quantum wire system, with a 7.5 nm barrier between the wires. The derivative of the linear conductance shows evidence for both single wire occupation and coupling between the wires. This provides a map of the subband occupation that illustrates the control that we have over the vertically coupled double quantum wires. Preliminary tunneling results indicate a sharp 1D-1D peak in conjunction with a broad 2D-2D background signal. This 1D-1D peak is sensitively dependent on the top and bottom split gate voltage.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 959256
- Report Number(s):
- SAND2004-3598C; TRN: US200924%%571
- Resource Relation:
- Conference: Proposed for presentation at the 27th International Conference on the Physics of Semiconductors (ICPS27) held July 26-30, 2004 in Flagstaff, AZ.
- Country of Publication:
- United States
- Language:
- English
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