%0 Journal Article
%A Jin, H. Z.
%A Zhu, J.
%A Erhart, P.
%A Jia, C. L.
%A Regnery, S.
%A Urban, K.
%A Waser, R.
%T An interfacial defect layer observed at (Ba,Sr)TiO3/Pt interface
%J Thin solid films
%V 429
%@ 0040-6090
%C Amsterdam [u.a.]
%I Elsevier
%M PreJuSER-30360
%P 282 - 285
%D 2003
%Z Record converted from VDB: 12.11.2012
%X 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.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000182647900042
%R 10.1016/S0040-6090(02)01330-5
%U https://juser.fz-juelich.de/record/30360