Title :
Effect of topology on coherent transport through nanotube junctions
Author :
Marchi, A. ; Bertoni, A. ; Reggiani, S. ; Rudan, M.
Author_Institution :
Dept. of Electron., Bologna Univ., Italy
Abstract :
In this paper, we study the effects of topology on the coherent single-electron transport through junctions of nanotubes with different chiralities. The junctions are modeled as cylindrical surfaces with variable radius. The quantum dynamics of the particle bound to a curved surface is described by a modified Schrodinger equation depending on two curvilinear coordinates. The transmission coefficients are computed by numerically solving the equation for a number of different geometries. Our results show how the topology of the nanotube structure is reflected onto the coherent transport characteristics of the system.
Keywords :
Schrodinger equation; carbon nanotubes; nanotube devices; single electron devices; topology; C; Schrodinger equation; chirality; coherent single electron transport; curvilinear coordinates; cylindrical surfaces; geometry; nanotube junctions; nanotube structure; nanotube topology; numerical analysis; quantum particle dynamics; transmission coefficients; Carbon nanotubes; Circuit topology; Computational geometry; Computational modeling; Differential equations; Eigenvalues and eigenfunctions; Electrons; Nanostructures; Schrodinger equation; Telephony;
Conference_Titel :
Nanotechnology, 2004. 4th IEEE Conference on
Print_ISBN :
0-7803-8536-5
DOI :
10.1109/NANO.2004.1392264
