Journal Article

PreJuSER-40817

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Piezoresponse in the light of surface adsorbates: Relevance of defined surface conditions for perovskite materials

Peter, F.FZJ* ; Szot, K.FZJ* ; Waser, R.FZJ* ; Reichenberg, B. ; Tiedke, S. ; Szade, J.FZJ*

2004
American Institute of Physics Melville, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/991  doi:10.1063/1.1799241

Abstract: We report on the influence of a surface layer prevailing on perovskites on the piezoelectricity measured by piezoresponse force microscopy. Surface sensitive measurements show that this layer consists of chemisorbates and physisorbates. The surface layer can be removed to a large extent by heating the sample under ultrahigh vacuum conditions. It is shown that the effect of this treatment on the piezoresponse of the material is significant as the potential difference applied to the sample is no longer reduced by a voltage drop across the adsorbate layer. As a consequence the internal electric field is higher in comparison to the presence of a layer and so the piezoresponse is higher as well. (C) 2004 American Institute of Physics.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Elektronische Materialien (IFF-IEM)
2. Center of Nanoelectronic Systems for Information Technology (CNI)

Research Program(s):

1. Materialien, Prozesse und Bauelemente für die Mikro- und Nanoelektronik (I01)

Appears in the scientific report 2004
Notes: This version is available at the following Publisher URL: http://apl.aip.org

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