Time-Dependent Wave-Packet Diffusion Method for Quantum Transport Calculation: From Diffusive to Ballistic Regimes

被引：17

作者：

Ishii, Hiroyuki ^{[1
,2
]}

Kobayashi, Nobuhiko ^{[2
]}

Hirose, Kenji ^{[3
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan

[2] Univ Tsukuba, Inst Appl Phys, Tsukuba, Ibaraki 3058573, Japan

[3] NEC Corp Ltd, Nano Elect Res Labs, Tsukuba, Ibaraki 3058501, Japan

来源：

APPLIED PHYSICS EXPRESS | 2008年 / 1卷 / 12期

关键词：

D O I：

10.1143/APEX.1.123002

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We developed a time-dependent wave-packet diffusion method for quantum electron transport calculations. This method enables us to treat the transport problems of huge systems of up to 10 million atoms under impurity scattering and electron-phonon coupling. By combining our method with molecular dynamics simulations, we can treat the electron transport from diffusive to ballistic regimes from an atomistic viewpoint. To demonstrate the method, we investigated the transport properties of metallic carbon nanotubes and the channel-length dependence of their resistance from diffusive to ballistic regimes. The obtained mean free path and relaxation time are consistent with experimental observations. (C) 2008 The Japan Society of Applied Physics

引用

页码：1230021 / 1230023

页数：3

共 19 条

[1] Onset of energy dissipation in ballistic atomic wires -: art. no. 216803 [J].

Agraït, N ;

Untiedt, C ;

Rubio-Bollinger, G ;

Vieira, S .

PHYSICAL REVIEW LETTERS, 2002, 88 (21) :4

[2] Numerical study of the dynamical conductivity in carbon nanotubes [J].

Asada, Yoichi ;

Ando, Tsuneya .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2006, 75 (09)

[3] Ultrahigh electron mobility in suspended graphene [J].

Bolotin, K. I. ;

Sikes, K. J. ;

Jiang, Z. ;

Klima, M. ;

Fudenberg, G. ;

Hone, J. ;

Kim, P. ;

Stormer, H. L. .

SOLID STATE COMMUNICATIONS, 2008, 146 (9-10) :351-355

[4] EMPIRICAL POTENTIAL FOR HYDROCARBONS FOR USE IN SIMULATING THE CHEMICAL VAPOR-DEPOSITION OF DIAMOND FILMS [J].

BRENNER, DW .

PHYSICAL REVIEW B, 1990, 42 (15) :9458-9471

[5] Functional nanoscale electronic devices assembled using silicon nanowire building blocks [J].

Cui, Y ;

Lieber, CM .

SCIENCE, 2001, 291 (5505) :851-853

[6] Extraordinary mobility in semiconducting carbon nanotubes [J].

Durkop, T ;

Getty, SA ;

Cobas, E ;

Fuhrer, MS .

NANO LETTERS, 2004, 4 (01) :35-39

[7]

HARRISON WA, 1989, ELECT STRUCTURE PROP, P48

[8] Quantum transport properties of carbon nanotube field-effect transistors with electron-phonon coupling [J].

Ishii, Hiroyuki ;

Kobayashi, Nobuhiko ;

Hirose, Kenji .

PHYSICAL REVIEW B, 2007, 76 (20)

[9] High-field quasiballistic transport in short carbon nanotubes [J].

Javey, A ;

Guo, J ;

Paulsson, M ;

Wang, Q ;

Mann, D ;

Lundstrom, M ;

Dai, HJ .

PHYSICAL REVIEW LETTERS, 2004, 92 (10) :106804-1

[10] Electron-phonon matrix elements in single-wall carbon nanotubes [J].

Jiang, J ;

Saito, R ;

Samsonidze, GG ;

Chou, SG ;

Jorio, A ;

Dresselhaus, G ;

Dresselhaus, MS .

PHYSICAL REVIEW B, 2005, 72 (23)

← 1 2 →