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Molecular growth determined by surface domain patterns

In English

Författare

  • John Ahlund
  • Katharina Nilson
  • Pal Palmgren
  • Emmanuelle Gothelid
  • Joachim Schiessling
  • Mats Gothelid
  • Nils Mårtensson
  • Carla Puglia

Summary, in English

The growth of iron phthalocyanine (FePc) on InSb(001) c(8 x 2) at submonolayer coverage has been investigated with scanning tunneling microscopy (STM). FePc adsorbs flat centered on the In rows both at 70 K and at room temperature (RT). However, the shapes of the two-dimensional molecular islands are fundamentally different; while the RT growth results in chainlike structures along the [I 10] direction, as already observed for other Pc's adsorbed on the same surface, the islands are prolonged along [110], i.e., perpendicular to the substrate rows, at 70 K. These observations are explained on the basis of a recently observed new surface phase at low temperature, resulting in structural domains on the surface. The molecular growth front follows the propagating domain boundary that freezes at low temperature.

Publiceringsår

2008

Språk

Engelska

Sidor

6887-6890

Publikation/Tidskrift/Serie

Journal of Physical Chemistry C

Volym

112

Issue

17

Dokumenttyp

Artikel i tidskrift

Förlag

The American Chemical Society (ACS)

Ämne

  • Natural Sciences
  • Physical Sciences

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1932-7447