Mechanisms for electron transport in atomic-scale one-dimensional wires: Soliton and polaron effects

被引：18

作者：

Ness, H ^{[1
]}

Fisher, AJ ^{[1
]}

机构：

[1] UCL, Dept Phys & Astron, London WC1E 6BT, England

来源：

EUROPHYSICS LETTERS | 2002年 / 57卷 / 06期

关键词：

D O I：

10.1209/epl/i2002-00593-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study one-electron tunneling through atomic-scale one-dimensional wires in the presence of coherent electron-phonon (e-ph) coupling. We use a full quantum model for the e-ph interaction within the wire with open boundary conditions. We illustrate the mechanisms of transport in the context of molecular wires subject to boundary conditions imposing the presence of a soliton defect in the molecule. Competition between polarons and solitons in the coherent transport is examined. The transport mechanisms proposed are generally applicable to other one-dimensional nanoscale systems with strong e-ph coupling.

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页码：885 / 891

页数：7

相关论文

共 28 条

[1] EFFECT OF INELASTIC PROCESSES ON TUNNELING [J].

BONCA, J ;

TRUGMAN, SA .

PHYSICAL REVIEW LETTERS, 1995, 75 (13) :2566-2569

[2] Inelastic quantum transport [J].

Bonca, J ;

Trugman, SA .

PHYSICAL REVIEW LETTERS, 1997, 79 (24) :4874-4877

[3] Small polaron formation in dangling-bond wires on the Si(001) surface [J].

Bowler, DR ;

Fisher, AJ .

PHYSICAL REVIEW B, 2001, 63 (03)

[4] PHONON MODES IN THE SU-SCHRIEFFER-HEEGER MODEL FOR POLYACETYLENE [J].

CHAO, KA ;

WANG, YL .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1985, 18 (36) :1127-1132

[5] Conductance quantization in nanowires formed between micro and macroscopic metallic electrodes [J].

CostaKramer, JL ;

Garcia, N ;

GarciaMochales, P ;

Serena, PA ;

Marques, MI ;

Correia, A .

PHYSICAL REVIEW B, 1997, 55 (08) :5416-5424

[6] Does Luttinger liquid behaviour survive in an atomic wire on a surface? [J].

Dash, LK ;

Fisher, AJ .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (22) :5035-5046

[7] Adsorption and tunneling of atomic scale lines of indium and lead on Si(100) [J].

Dong, ZC ;

Fujita, D ;

Nejoh, H .

PHYSICAL REVIEW B, 2001, 63 (11)

[8] Conductance switching in single molecules through conformational changes [J].

Donhauser, ZJ ;

Mantooth, BA ;

Kelly, KF ;

Bumm, LA ;

Monnell, JD ;

Stapleton, JJ ;

Price, DW ;

Rawlett, AM ;

Allara, DL ;

Tour, JM ;

Weiss, PS .

SCIENCE, 2001, 292 (5525) :2303-2307

[9] SOLITONS IN CONDUCTING POLYMERS [J].

HEEGER, AJ ;

KIVELSON, S ;

SCHRIEFFER, JR ;

SU, WP .

REVIEWS OF MODERN PHYSICS, 1988, 60 (03) :781-850

[10] Jahn-Teller distortion in dangling-bond linear chains fabricated on a hydrogen-terminated Si(100)-2 x 1 surface [J].

Hitosugi, T ;

Heike, S ;

Onogi, T ;

Hashizume, T ;

Watanabe, S ;

Li, ZQ ;

Ohno, K ;

Kawazoe, Y ;

Hasegawa, T ;

Kitazawa, K .

PHYSICAL REVIEW LETTERS, 1999, 82 (20) :4034-4037