STM-induced desorption of hydrogen from Co nanoislands

M.V. Sicot, O. Kurnosikov, O.A.O. Adam, H.J.M. Swagten, B. Koopmans

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

17 Citaties (Scopus)
83 Downloads (Pure)

Uittreksel

Using low-temperature scanning tunneling microscopy (STM) and spectroscopy, we have studied the effects of H2 adsorption at 10 K on the electronic properties of nanometer-scale triangular Co islands deposited on Cu(111). Before H2 adsorption, two reported surface states are observed. However, after adsorption, both are quenched. In addition, we found that total removal of the adsorbate from the surface of the islands can be induced by the STM tip. As the tip affects only selected islands without perturbing neighboring islands, this process can be used to individually control the electronic properties of the Co nanoparticles. In particular, total desorption fully recovers the surface electronic features of the clean islands. Direct and indirect desorption mechanisms are discussed in relation to these experimental data.
Originele taal-2Engels
Artikelnummer035417
Pagina's (van-tot)035417-1/7
Aantal pagina's7
TijdschriftPhysical Review B
Volume77
Nummer van het tijdschrift3
DOI's
StatusGepubliceerd - 2008

Vingerafdruk

Scanning tunneling microscopy
scanning tunneling microscopy
Hydrogen
Desorption
desorption
Adsorption
Electronic properties
hydrogen
adsorption
Surface states
Adsorbates
electronics
Spectroscopy
Nanoparticles
nanoparticles
Temperature
spectroscopy

Citeer dit

@article{b43962c9bd564177bc2f7662e2749f88,
title = "STM-induced desorption of hydrogen from Co nanoislands",
abstract = "Using low-temperature scanning tunneling microscopy (STM) and spectroscopy, we have studied the effects of H2 adsorption at 10 K on the electronic properties of nanometer-scale triangular Co islands deposited on Cu(111). Before H2 adsorption, two reported surface states are observed. However, after adsorption, both are quenched. In addition, we found that total removal of the adsorbate from the surface of the islands can be induced by the STM tip. As the tip affects only selected islands without perturbing neighboring islands, this process can be used to individually control the electronic properties of the Co nanoparticles. In particular, total desorption fully recovers the surface electronic features of the clean islands. Direct and indirect desorption mechanisms are discussed in relation to these experimental data.",
author = "M.V. Sicot and O. Kurnosikov and O.A.O. Adam and H.J.M. Swagten and B. Koopmans",
year = "2008",
doi = "10.1103/PhysRevB.77.035417",
language = "English",
volume = "77",
pages = "035417--1/7",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "3",

}

STM-induced desorption of hydrogen from Co nanoislands. / Sicot, M.V.; Kurnosikov, O.; Adam, O.A.O.; Swagten, H.J.M.; Koopmans, B.

In: Physical Review B, Vol. 77, Nr. 3, 035417, 2008, blz. 035417-1/7.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - STM-induced desorption of hydrogen from Co nanoislands

AU - Sicot, M.V.

AU - Kurnosikov, O.

AU - Adam, O.A.O.

AU - Swagten, H.J.M.

AU - Koopmans, B.

PY - 2008

Y1 - 2008

N2 - Using low-temperature scanning tunneling microscopy (STM) and spectroscopy, we have studied the effects of H2 adsorption at 10 K on the electronic properties of nanometer-scale triangular Co islands deposited on Cu(111). Before H2 adsorption, two reported surface states are observed. However, after adsorption, both are quenched. In addition, we found that total removal of the adsorbate from the surface of the islands can be induced by the STM tip. As the tip affects only selected islands without perturbing neighboring islands, this process can be used to individually control the electronic properties of the Co nanoparticles. In particular, total desorption fully recovers the surface electronic features of the clean islands. Direct and indirect desorption mechanisms are discussed in relation to these experimental data.

AB - Using low-temperature scanning tunneling microscopy (STM) and spectroscopy, we have studied the effects of H2 adsorption at 10 K on the electronic properties of nanometer-scale triangular Co islands deposited on Cu(111). Before H2 adsorption, two reported surface states are observed. However, after adsorption, both are quenched. In addition, we found that total removal of the adsorbate from the surface of the islands can be induced by the STM tip. As the tip affects only selected islands without perturbing neighboring islands, this process can be used to individually control the electronic properties of the Co nanoparticles. In particular, total desorption fully recovers the surface electronic features of the clean islands. Direct and indirect desorption mechanisms are discussed in relation to these experimental data.

U2 - 10.1103/PhysRevB.77.035417

DO - 10.1103/PhysRevB.77.035417

M3 - Article

VL - 77

SP - 035417-1/7

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 3

M1 - 035417

ER -