Quantized conductance in an atom-sized point contact

L. Olesen; E. Laegsgaard; I. Stensgaard; Flemming Besenbacher; Jakob Schiøtz; Per Stoltze; Karsten Wedel Jacobsen; Jens Kehlet Nørskov

doi:10.1103/PhysRevLett.72.2251

Quantized conductance in an atom-sized point contact

L. Olesen, E. Laegsgaard, I. Stensgaard, Flemming Besenbacher, Jakob Schiøtz, Per Stoltze, Karsten Wedel Jacobsen, Jens Kehlet Nørskov

Aarhus University

Research output: Contribution to journal › Journal article › Research › peer-review

824 Downloads (Pure)

Abstract

We present direct measurements at room temperature of the conductance of a point contact between a scanning tunneling microscope tip and Ni, Cu, and Pt surfaces. As the contact is stretched the conductance jumps in units of 2e2/h. Atomistic simulations of the stretch of the contact combined with calculations of the conductance using the Landauer formula show that the observed behavior is due to the quantization of the transverse electron motion in a contact which contains between one and ten atoms.

Original language	English
Journal	Physical Review Letters
Volume	72
Issue number	14
Pages (from-to)	2251-2254
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.72.2251
Publication status	Published - 1994

Bibliographical note

Copyright (1994) by the American Physical Society.

Keywords

TRANSPORT
RESISTANCE

Access to Document

10.1103/PhysRevLett.72.2251

OlesenFinal published version, 819 KB

http://link.aps.org/doi/10.1103/PhysRevLett.72.2251

OpenUrl availability

Full text

Cite this

@article{ecf6cfe4133440019bfca86a29ccd243,

title = "Quantized conductance in an atom-sized point contact",

abstract = "We present direct measurements at room temperature of the conductance of a point contact between a scanning tunneling microscope tip and Ni, Cu, and Pt surfaces. As the contact is stretched the conductance jumps in units of 2e2/h. Atomistic simulations of the stretch of the contact combined with calculations of the conductance using the Landauer formula show that the observed behavior is due to the quantization of the transverse electron motion in a contact which contains between one and ten atoms.",

keywords = "TRANSPORT, RESISTANCE",

author = "L. Olesen and E. Laegsgaard and I. Stensgaard and Flemming Besenbacher and Jakob Schi{\o}tz and Per Stoltze and Jacobsen, {Karsten Wedel} and N{\o}rskov, {Jens Kehlet}",

note = "Copyright (1994) by the American Physical Society.",

year = "1994",

doi = "10.1103/PhysRevLett.72.2251",

language = "English",

volume = "72",

pages = "2251--2254",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "14",

}

TY - JOUR

T1 - Quantized conductance in an atom-sized point contact

AU - Olesen, L.

AU - Laegsgaard, E.

AU - Stensgaard, I.

AU - Besenbacher, Flemming

AU - Schiøtz, Jakob

AU - Stoltze, Per

AU - Jacobsen, Karsten Wedel

AU - Nørskov, Jens Kehlet

PY - 1994

Y1 - 1994

N2 - We present direct measurements at room temperature of the conductance of a point contact between a scanning tunneling microscope tip and Ni, Cu, and Pt surfaces. As the contact is stretched the conductance jumps in units of 2e2/h. Atomistic simulations of the stretch of the contact combined with calculations of the conductance using the Landauer formula show that the observed behavior is due to the quantization of the transverse electron motion in a contact which contains between one and ten atoms.

AB - We present direct measurements at room temperature of the conductance of a point contact between a scanning tunneling microscope tip and Ni, Cu, and Pt surfaces. As the contact is stretched the conductance jumps in units of 2e2/h. Atomistic simulations of the stretch of the contact combined with calculations of the conductance using the Landauer formula show that the observed behavior is due to the quantization of the transverse electron motion in a contact which contains between one and ten atoms.

KW - TRANSPORT

KW - RESISTANCE

U2 - 10.1103/PhysRevLett.72.2251

DO - 10.1103/PhysRevLett.72.2251

M3 - Journal article

C2 - 10055827

SN - 0031-9007

VL - 72

SP - 2251

EP - 2254

JO - Physical Review Letters

JF - Physical Review Letters

IS - 14

ER -

Quantized conductance in an atom-sized point contact

Abstract

Bibliographical note

Keywords

Access to Document

OpenUrl availability

Fingerprint

Cite this