Single molecule vibrational spectroscopy of N2 on Cu(1 1 0)

L. Leung; C. A. Muryn; G. Thornton

doi:10.1016/j.susc.2004.05.127

Single molecule vibrational spectroscopy of N2 on Cu(1 1 0)

L. Leung, C. A. Muryn, G. Thornton^*

^*Corresponding author for this work

London Centre for Nanotechnology

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

Abstract

Vibrational spectra of single N₂ molecules on Cu(110) have been measured using inelastic electron tunnelling spectroscopy with a scanning tunnelling microscope (STM-IETS). At 5 K, N₂ exhibits a molecular stretch vibrational loss at 265 meV. Two adsorbate-substrate modes are also observed, at 11 and 36 meV, which are assigned to a frustrated translation and to a mode involving the molecule vibrating against the substrate, respectively. These results point to chemisorbed N₂, with the molecular axis aligned perpendicular to the substrate. On the basis of earlier studies in the monolayer regime, it is likely that the isolated molecules studied here are associated with Cu vacancy sites.

Original language	English
Pages (from-to)	671-675
Number of pages	5
Journal	Surface Science
Volume	566-568
Issue number	1-3 PART 2
DOIs	https://doi.org/10.1016/j.susc.2004.05.127
Publication status	Published - 20 Sept 2004
Event	Proceedings of the 22nd European Conference on Surface Science - Prague, Czech Republic Duration: 7 Sept 2003 → 12 Sept 2003

Keywords

Copper
Nitrogen molecule
Scanning tunneling spectroscopies
Vibrations of adsorbed molecules

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10.1016/j.susc.2004.05.127

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title = "Single molecule vibrational spectroscopy of N2 on Cu(1 1 0)",

abstract = "Vibrational spectra of single N2 molecules on Cu(110) have been measured using inelastic electron tunnelling spectroscopy with a scanning tunnelling microscope (STM-IETS). At 5 K, N2 exhibits a molecular stretch vibrational loss at 265 meV. Two adsorbate-substrate modes are also observed, at 11 and 36 meV, which are assigned to a frustrated translation and to a mode involving the molecule vibrating against the substrate, respectively. These results point to chemisorbed N2, with the molecular axis aligned perpendicular to the substrate. On the basis of earlier studies in the monolayer regime, it is likely that the isolated molecules studied here are associated with Cu vacancy sites.",

keywords = "Copper, Nitrogen molecule, Scanning tunneling spectroscopies, Vibrations of adsorbed molecules",

author = "L. Leung and Muryn, \{C. A.\} and G. Thornton",

year = "2004",

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doi = "10.1016/j.susc.2004.05.127",

language = "English",

volume = "566-568",

pages = "671--675",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier BV",

number = "1-3 PART 2",

note = "Proceedings of the 22nd European Conference on Surface Science ; Conference date: 07-09-2003 Through 12-09-2003",

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TY - JOUR

T1 - Single molecule vibrational spectroscopy of N2 on Cu(1 1 0)

AU - Leung, L.

AU - Muryn, C. A.

AU - Thornton, G.

PY - 2004/9/20

Y1 - 2004/9/20

N2 - Vibrational spectra of single N2 molecules on Cu(110) have been measured using inelastic electron tunnelling spectroscopy with a scanning tunnelling microscope (STM-IETS). At 5 K, N2 exhibits a molecular stretch vibrational loss at 265 meV. Two adsorbate-substrate modes are also observed, at 11 and 36 meV, which are assigned to a frustrated translation and to a mode involving the molecule vibrating against the substrate, respectively. These results point to chemisorbed N2, with the molecular axis aligned perpendicular to the substrate. On the basis of earlier studies in the monolayer regime, it is likely that the isolated molecules studied here are associated with Cu vacancy sites.

AB - Vibrational spectra of single N2 molecules on Cu(110) have been measured using inelastic electron tunnelling spectroscopy with a scanning tunnelling microscope (STM-IETS). At 5 K, N2 exhibits a molecular stretch vibrational loss at 265 meV. Two adsorbate-substrate modes are also observed, at 11 and 36 meV, which are assigned to a frustrated translation and to a mode involving the molecule vibrating against the substrate, respectively. These results point to chemisorbed N2, with the molecular axis aligned perpendicular to the substrate. On the basis of earlier studies in the monolayer regime, it is likely that the isolated molecules studied here are associated with Cu vacancy sites.

KW - Copper

KW - Nitrogen molecule

KW - Scanning tunneling spectroscopies

KW - Vibrations of adsorbed molecules

UR - https://www.scopus.com/pages/publications/4544224975

U2 - 10.1016/j.susc.2004.05.127

DO - 10.1016/j.susc.2004.05.127

M3 - Conference article

AN - SCOPUS:4544224975

SN - 0039-6028

VL - 566-568

SP - 671

EP - 675

JO - Surface Science

JF - Surface Science

IS - 1-3 PART 2

T2 - Proceedings of the 22nd European Conference on Surface Science

Y2 - 7 September 2003 through 12 September 2003

ER -

Single molecule vibrational spectroscopy of N2 on Cu(1 1 0)

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Keywords

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