On the electrostatic potential profile in biased molecular wires

被引：55

作者：

Nitzan, A ^{[1
]}

Galperin, M

Ingold, GL

Grabert, H

机构：

[1] Tel Aviv Univ, Sackler Fac Sci, Sch Chem, IL-69978 Tel Aviv, Israel

[2] Univ Augsburg, Inst Phys, D-86135 Augsburg, Germany

[3] Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany

来源：

JOURNAL OF CHEMICAL PHYSICS | 2002年 / 117卷 / 23期

关键词：

D O I：

10.1063/1.1522406

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The potential profile across a biased molecular junction is calculated within the framework of a simple Thomas-Fermi-type screening model. In particular, the relationship between this profile and the lateral molecular cross section is examined. We find that a transition from a linear potential profile to a potential that drops mainly near the molecule-metal contacts occurs with increasing cross-section width, in agreement with numerical quantum calculations. (C) 2002 American Institute of Physics.

引用

页码：10837 / 10841

页数：5

共 10 条

[1] Scanned probe microscopy of electronic transport in carbon nanotubes [J].

Bachtold, A ;

Fuhrer, MS ;

Plyasunov, S ;

Forero, M ;

Anderson, EH ;

Zettl, A ;

McEuen, PL .

PHYSICAL REVIEW LETTERS, 2000, 84 (26) :6082-6085

[2] Unified description of molecular conduction: From molecules to metallic wires [J].

Damle, PS ;

Ghosh, AW ;

Datta, S .

PHYSICAL REVIEW B, 2001, 64 (20)

[3] Current-voltage characteristics of self-assembled monolayers by scanning tunneling microscopy [J].

Datta, S ;

Tian, WD ;

Hong, SH ;

Reifenberger, R ;

Henderson, JI ;

Kubiak, CP .

PHYSICAL REVIEW LETTERS, 1997, 79 (13) :2530-2533

[4] FIRST-PRINCIPLES CALCULATION OF THE ELECTRONIC-STRUCTURE FOR A BIELECTRODE JUNCTION SYSTEM UNDER STRONG-FIELD AND CURRENT [J].

HIROSE, K ;

TSUKADA, M .

PHYSICAL REVIEW B, 1995, 51 (08) :5278-5290

[5] Carbon-atom wires: Charge-transfer doping, voltage drop, and the effect of distortions [J].

Lang, ND ;

Avouris, P .

PHYSICAL REVIEW LETTERS, 2000, 84 (02) :358-361

[6] Molecular wire conductance: Electrostatic potential spatial profile [J].

Mujica, V ;

Roitberg, AE ;

Ratner, M .

JOURNAL OF CHEMICAL PHYSICS, 2000, 112 (15) :6834-6839

[7] ELECTROCHEMICAL-POTENTIAL VARIATIONS ACROSS A CONSTRICTION [J].

PERNAS, PL ;

MARTINRODERO, A ;

FLORES, F .

PHYSICAL REVIEW B, 1990, 41 (12) :8553-8556

[8]

PLEUTIN S, ARXIVPHYSICS0209091

[9] Conductance spectra of molecular wires [J].

Tian, WD ;

Datta, S ;

Hong, SH ;

Reifenberger, R ;

Henderson, JI ;

Kubiak, CP .

JOURNAL OF CHEMICAL PHYSICS, 1998, 109 (07) :2874-2882

[10] Electronic transport through single conjugated molecules [J].

Weber, HB ;

Reichert, J ;

Weigend, F ;

Ochs, R ;

Beckmann, D ;

Mayor, M ;

Ahlrichs, R ;

von Löhneysen, H .

CHEMICAL PHYSICS, 2002, 281 (2-3) :113-125

← 1 →