Self-Organization of L-Serine on Cu(001)

We investigated two self-organized structures of the L-serine on the Cu(001) surface using LEED and STM at 310 K. The first structure just after L-serine deposition formed as thick line domains with width of about 10 nm in (2 -1, 2 4) periodicity, and the second was observed as thin line domains of...

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Bibliographic Details
Published inE-journal of surface science and nanotechnology Vol. 7; pp. 821 - 824
Main Authors Iwai, Hidekazu, Emori, Akira, Egawa, Chikashi
Format Journal Article
LanguageEnglish
Published Tokyo The Japan Society of Vacuum and Surface Science 01.01.2009
Japan Science and Technology Agency
Subjects
Copper
Scanning Tunneling Microscopy
Self-assembly
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Summary:We investigated two self-organized structures of the L-serine on the Cu(001) surface using LEED and STM at 310 K. The first structure just after L-serine deposition formed as thick line domains with width of about 10 nm in (2 -1, 2 4) periodicity, and the second was observed as thin line domains of one-dimensional structure in (2 1, x y) periodicity (where x and y are any integer). These structures were considered by high-resolution STM images in which a protrusion was discriminated as an adsorbate, and we propose interesting structure models. The former structure consists of L-serine dimers as octameric cluster-like of serine, on the other hand, the latter is formed by two serine rows connected in rotated symmetry with (2 1, x y) periodicity. [DOI: 10.1380/ejssnt.2009.821]
ISSN:1348-0391
1348-0391
DOI:10.1380/ejssnt.2009.821