Detail publikačního výsledku

Slowing down adatom diffusion by an adsorbate: Co on Pt(111) with and without preadsorbed CO

KALOUSEK, R.; SCHMID, M.; HAMMERSCHMID, A.; LUNDGREN, E.; VARGA, P.

Originální název

Slowing down adatom diffusion by an adsorbate: Co on Pt(111) with and without preadsorbed CO

Anglický název

Slowing down adatom diffusion by an adsorbate: Co on Pt(111) with and without preadsorbed CO

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

Submonolayer deposition of cobalt on Pt(111) was studied by scanning tunneling microscopy at room temperature. It was found that deposition on a surface with adsorbed carbon monoxide (saturation coverage) leads to an island density almost ten times as high as that resulting from deposition on the clean platinum surface. Based on nucleation theory, we explain this fact as the result of a reduction of the diffusion coefficient of the Co adatoms in the presence of CO by more than two orders of magnitude. This effect is attributed to the displacement and/or rearrangement of the CO molecules necessary when Co adatoms diffuse over the "crowded" surface.

Anglický abstrakt

Submonolayer deposition of cobalt on Pt(111) was studied by scanning tunneling microscopy at room temperature. It was found that deposition on a surface with adsorbed carbon monoxide (saturation coverage) leads to an island density almost ten times as high as that resulting from deposition on the clean platinum surface. Based on nucleation theory, we explain this fact as the result of a reduction of the diffusion coefficient of the Co adatoms in the presence of CO by more than two orders of magnitude. This effect is attributed to the displacement and/or rearrangement of the CO molecules necessary when Co adatoms diffuse over the "crowded" surface.

Klíčová slova v angličtině

EPITAXIAL-GROWTH, ISLAND GROWTH, FILMS, NUCLEATION, ADSORPTION, METAL

Autoři

KALOUSEK, R.; SCHMID, M.; HAMMERSCHMID, A.; LUNDGREN, E.; VARGA, P.

Vydáno

01.01.2003

ISSN

1098-0121

Periodikum

PHYSICAL REVIEW B

Svazek

68

Číslo

23

Stát

Spojené státy americké

Strany od

233401

Strany počet

7

BibTex

@article{BUT41939,
  author="Radek {Kalousek} and Michael {Schmid} and A. {Hammerschmid} and E. {Lundgren} and P. {Varga}",
  title="Slowing down adatom diffusion by an adsorbate: Co on Pt(111) with and without preadsorbed CO",
  journal="PHYSICAL REVIEW B",
  year="2003",
  volume="68",
  number="23",
  pages="7",
  issn="1098-0121"
}