Adsorption behavior of Fe atoms on a naphthalocyanine monolayer on Ag(111) surface

Journal Article · Fri May 29 00:00:00 EDT 2015 · Chinese Physics. B

DOI:https://doi.org/10.1088/1674-1056/24/7/076802· OSTI ID:1391699

Yan, Ling -Hao ^[1]; Wu, Rong -Ting ^[1]; Bao, De -Liang ^[2]; Ren, Jun -Hai ^[1]; Zhang, Yan -Fang ^[1]; Zhang, Hai -Gang ^[3]; Huang, Li ^[1]; Wang, Ye -Liang ^[1]; Du, Shi -Xuan ^[1]; Huan, Qing ^[1]; Gao, Hong -Jun ^[4]

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1. Chinese Academy of Sciences, Beijing (China)
2. Univ. of Chinese Academy of Sciences, Beijing (China)
3. Argonne National Lab. (ANL), Chicago, IL (United States)
4. Chinese Academy of Sciences, Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China)

Adsorption behavior of Fe atoms on a metal-free naphthalocyanine (H₂Nc) monolayer on Ag(111) surface at room temperature has been investigated using scanning tunneling microscopy combined with density functional theory (DFT) based calculations. We found that the Fe atoms adsorbed at the centers of H₂Nc molecules and formed Fe-H₂Nc complexes at low coverage. DFT calculations show that the configuration of Fe at the center of a molecule is the most stable site, in good agreement with the experimental observations. After an Fe-H₂Nc complex monolayer was formed, the extra Fe atoms self-assembled to Fe clusters of uniform size and adsorbed dispersively at the interstitial positions of Fe-H₂Nc complex monolayer. Furthermore, the H₂Nc monolayer grown on Ag(111) could be a good template to grow dispersed magnetic metal atoms and clusters at room temperature for further investigation of their magnetism-related properties.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 1391699
• Journal Information: Chinese Physics. B, Vol. 24, Issue 7; ISSN 1674-1056
• Publisher: IOP Publishing
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
Ag(111) Surface
Fe atoms
Naphthalocyanine
adsorption behavior
density functional theory
room temperature
scanning tunneling microscopy
self-assembled behavior