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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:15 |
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Conference: Bucharest University Faculty of Physics 2003 Meeting
Section: Atomic and Molecular Physics; Astrophysics
Title:
RESONANT TUNNELLING DEVICE AT THE MOLECULAR LEVEL
AN EXACTLY SOLVABLE MODEL
Authors:
P. Budau1, C.D. Spataru2
Affiliation:
1. Faculty of Physics, Atomic and Nuclear Physics Dept., University of Bucharest
2. Department of Physics, University of California, Berkeley CA 94720, USA
E-mail
Keywords:
Abstract:
We present an exactly solvable model, based on an Anderson-Newns-Grimley type Hamiltonian, for a three - terminal device at the molecular level.
This device contains two nanowires as source and drain, a Scanning Tunnelling Microscopy ( STM) tip as gate and an active atom or molecule between the STM tip and the two nanowires. We show that an amplification effect of the tunnelling current between the source and the drain is obtained by changing the gate voltage and the distance between the gate and the active molecule [1].
The present state of art of the planar technology and the use of the STM/AFM techniques seems to make possible the realization of the proposed device.
[1]. C.D. Spataru, P. Budau, J. Physics Condens Matter 14, 4995 ( 2002)
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