Two-dimensional vacancy islands induced by the growth of Cr on Cu(111)

Jong Keon Yoon; Goo Eun Jung; Howon Kim; Kyung Hoon Chung; Se Jong Kahng

doi:10.1016/j.tsf.2010.09.046

Two-dimensional vacancy islands induced by the growth of Cr on Cu(111)

Jong Keon Yoon, Goo Eun Jung, Howon Kim, Kyung Hoon Chung, Se Jong Kahng

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Surface structures induced by the growth of Cr on Cu(111) at room temperature are studied with scanning tunneling microscopy. At sub-monolayer Cr coverage, islands and vacancy islands with lateral sizes of about 10 nm in length are observed. The islands show one- or two-monolayer heights with irregular shapes, while vacancy islands have one-monolayer depth and hexagonal shapes with openings. Atomic structures inside and near the vacancy islands are the same as those of bare Cu(111), implying that Cu atoms detach from the vacancy islands and attach to other step edges and islands. Possible origins and atomic processes for the observed structures are discussed.

Original language	English
Pages (from-to)	1375-1379
Number of pages	5
Journal	Thin Solid Films
Volume	519
Issue number	4
DOIs	https://doi.org/10.1016/j.tsf.2010.09.046
Publication status	Published - 2010 Dec 1

Bibliographical note

Funding Information:
The authors gratefully acknowledge financial support from the National Research Foundation of Korea , and from the Ministry of Education Science and Technology (grant nos. 2005-2002369 and 2007-0054038 ).

Keywords

Chromium
Cupper
Growth
Scanning tunneling microscopy
Surface structure

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1016/j.tsf.2010.09.046

Cite this

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title = "Two-dimensional vacancy islands induced by the growth of Cr on Cu(111)",

abstract = "Surface structures induced by the growth of Cr on Cu(111) at room temperature are studied with scanning tunneling microscopy. At sub-monolayer Cr coverage, islands and vacancy islands with lateral sizes of about 10 nm in length are observed. The islands show one- or two-monolayer heights with irregular shapes, while vacancy islands have one-monolayer depth and hexagonal shapes with openings. Atomic structures inside and near the vacancy islands are the same as those of bare Cu(111), implying that Cu atoms detach from the vacancy islands and attach to other step edges and islands. Possible origins and atomic processes for the observed structures are discussed.",

keywords = "Chromium, Cupper, Growth, Scanning tunneling microscopy, Surface structure",

author = "Yoon, {Jong Keon} and Jung, {Goo Eun} and Howon Kim and Chung, {Kyung Hoon} and Kahng, {Se Jong}",

note = "Funding Information: The authors gratefully acknowledge financial support from the National Research Foundation of Korea , and from the Ministry of Education Science and Technology (grant nos. 2005-2002369 and 2007-0054038 ).",

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doi = "10.1016/j.tsf.2010.09.046",

language = "English",

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T1 - Two-dimensional vacancy islands induced by the growth of Cr on Cu(111)

AU - Yoon, Jong Keon

AU - Jung, Goo Eun

AU - Kim, Howon

AU - Chung, Kyung Hoon

AU - Kahng, Se Jong

N1 - Funding Information: The authors gratefully acknowledge financial support from the National Research Foundation of Korea , and from the Ministry of Education Science and Technology (grant nos. 2005-2002369 and 2007-0054038 ).

PY - 2010/12/1

Y1 - 2010/12/1

N2 - Surface structures induced by the growth of Cr on Cu(111) at room temperature are studied with scanning tunneling microscopy. At sub-monolayer Cr coverage, islands and vacancy islands with lateral sizes of about 10 nm in length are observed. The islands show one- or two-monolayer heights with irregular shapes, while vacancy islands have one-monolayer depth and hexagonal shapes with openings. Atomic structures inside and near the vacancy islands are the same as those of bare Cu(111), implying that Cu atoms detach from the vacancy islands and attach to other step edges and islands. Possible origins and atomic processes for the observed structures are discussed.

AB - Surface structures induced by the growth of Cr on Cu(111) at room temperature are studied with scanning tunneling microscopy. At sub-monolayer Cr coverage, islands and vacancy islands with lateral sizes of about 10 nm in length are observed. The islands show one- or two-monolayer heights with irregular shapes, while vacancy islands have one-monolayer depth and hexagonal shapes with openings. Atomic structures inside and near the vacancy islands are the same as those of bare Cu(111), implying that Cu atoms detach from the vacancy islands and attach to other step edges and islands. Possible origins and atomic processes for the observed structures are discussed.

KW - Chromium

KW - Cupper

KW - Growth

KW - Scanning tunneling microscopy

KW - Surface structure

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DO - 10.1016/j.tsf.2010.09.046

M3 - Article

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SN - 0040-6090

VL - 519

SP - 1375

EP - 1379

JO - Thin Solid Films

JF - Thin Solid Films

IS - 4

ER -

Two-dimensional vacancy islands induced by the growth of Cr on Cu(111)

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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