Local tunneling barrier height observations of NiAl(1 1 0)

Local work functions at individual atoms on a compound metal surface have been experimentally examined. The simultaneously obtained STM and local tunneling barrier height (LBH) images of NiAl(1 1 0) show that LBH at geometrically lower Ni sites is much higher than that at geometrically higher Al sit...

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Bibliographic Details
Published inSurface science Vol. 600; no. 11; pp. L139 - L142
Main Authors Saida, Morihiko, Horikawa, Kimio, Sato, Takanobu, Yamamoto, Shigehiko, Sasaki, Masahiro
Format Journal Article
LanguageEnglish
Published Lausanne Elsevier B.V 01.06.2006
Amsterdam Elsevier Science
New York, NY
Subjects
Alloys
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Local tunneling barrier height
Physics
Scanning tunneling microscopy
Surface electronic phenomena
Scanning tunneling microscopy
Surface electronic phenomena
Alloys
Local tunneling barrier height
Potential barrier
Work functions
Tunnel effect
Nickel
Barrier height
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Summary:Local work functions at individual atoms on a compound metal surface have been experimentally examined. The simultaneously obtained STM and local tunneling barrier height (LBH) images of NiAl(1 1 0) show that LBH at geometrically lower Ni sites is much higher than that at geometrically higher Al sites, indicating that each individual atom on the NiAl(1 1 0) surface has a specific potential barrier for relevant electrons.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0039-6028
1879-2758
DOI:10.1016/j.susc.2006.03.023