Journal Article

FZJ-2015-03345

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Formation and decay of a compressed phase of 4,4′-biphenyldicarboxylic acid on Cu(001)

Schwarz, D. (Corresponding Author)FZJ* ; van Gastel, R. ; Zandvliet, H. J. W. ; Poelsema, B.

2013
RSC Publ. Cambridge

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Please use a persistent id in citations: doi:10.1039/c3cp00049d

Abstract: The molecular arrangement of 4,4′-biphenyldicarboxylic acid (BDA) on Cu(001) has been studied at high coverage and relatively high temperature ([similar]400 K) using Low Energy Electron Microscopy, LEEM, and selected area diffraction, μLEED. Next to the previously reported c(8 × 8) structure, we also observe a compressed phase with a Image ID:c3cp00049d-t1.gif superstructure in matrix notation. All four equivalent (rotational and mirror) domains are equally populated. Both the c(8 × 8) and the compressed phase are confined to the first layer and the latter has a 14% higher density compared to the c(8 × 8) phase. Remarkably, this compressed phase is stable only during deposition and decays after interruption of the deposition. Apparently, the density of physisorbed admolecules on top of the c(8 × 8) layer has to be above a relevant threshold to allow the formation of the compressed phase.

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Contributing Institute(s):

1. Funktionale Nanostrukturen an Oberflächen (PGI-3)

Research Program(s):

1. 422 - Spin-based and quantum information (POF2-422) (POF2-422)

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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