Theoretical bases of nano-scale devices

Author

Tsukada, Masaru ; Tagami, Katsunori ; Hirose, Kenji ; Kobayashi, Nobuhiko

Author_Institution

Dept. of Nanosci. & Nanoeng., Waseda Univ., Tokyo, Japan

Volume

2

fYear

2005

fDate

12-17 Sept. 2005

Firstpage

8

Abstract

Recent topics on theoretical studies for the nano-scale structures connected between the electrodes are presented. The first-principles recursion transfer matrix method and non-equilibrium Green´s function technique are utilized for the analyses of atom wires and molecular bridges. A very large effect of the terminal structures is demonstrated for both the systems. If the transport is caused by the resonant tunneling, a large loop current inside the molecule is induced near the degenerate levels. Its relationship with the magnetically induced intra-molecular current is discussed for the case of triangular graphene.

Keywords

Green´s function methods; electrodes; molecular electronics; nanostructured materials; nanotechnology; recursion method; resonant tunnelling; transfer function matrices; atom wires; degenerate levels; electrodes; first-principles method; intramolecular current; loop current; magnetically induced current; molecular bridges; nanoscale devices; nanoscale structures; nonequilibrium Green function technique; recursion transfer matrix method; resonant tunneling; terminal structures; triangular graphene; Biotechnology; Bridges; Electrodes; Electrons; Green´s function methods; Nanoscale devices; Nanostructures; National electric code; Quantum mechanics; Wires;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Optoelectronics and Lasers, 2005. Proceedings of CAOL 2005. Second International Conference on

Print_ISBN

0-7803-9130-6

Type

conf

DOI

10.1109/CAOL.2005.1553903

Filename

1553903