Journal Article

PreJuSER-30360

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png An interfacial defect layer observed at (Ba,Sr)TiO3/Pt interface

Jin, H. Z. ; Zhu, J. ; Erhart, P.FZJ* ; Jia, C. L.FZJ* ; Regnery, S. ; Urban, K.FZJ* ; Waser, R.FZJ*

2003
Elsevier Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/S0040-6090(02)01330-5

Abstract: Barium strontium titanate (Ba,Sr)TiO3 (BST) thin-films on Pt-substrates were studied by transmission electron microscopy. The films show a columnar structure with the grains of 10-50 nm in diameter. These are oriented parallel to the [0 0 1] direction which in turn is parallel to the film growth direction. No amorphous intergrain regions occur. The high-resolution lattice fringe pictures show for the first time that over horizontally extended areas of the interface the lattice of the BST film is modified by the introduction of a defect layer. This observation is discussed in terms of a structural origin of the so-called dead-layer effect responsible for a reduction of the film permittivity with decreasing foil thickness. (C) 2003 Elsevier Science B.V. All rights reserved.

Keyword(s): J ; transmission electron microscopy (auto) ; interfacial defect layer (auto) ; barium strontium titanate (auto) ; high-density storage (auto)

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Mikrostrukturforschung (IFF-IMF)
2. Elektrokeramische Materialien (IFF-EKM)

Research Program(s):

1. Materialien, Prozesse und Bauelemente für die Mikro- und Nanoelektronik (I01)
2. Kondensierte Materie (M02)

Appears in the scientific report 2003

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