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This title appears in the Scientific Report : 2003 

An interfacial defect layer observed at (Ba,Sr)TiO3/Pt interface

An interfacial defect layer observed at (Ba,Sr)TiO3/Pt interface

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 dir...

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Personal Name(s): Jin, H. Z.
Zhu, J. / Erhart, P. / Jia, C. L. / Regnery, S. / Urban, K. / Waser, R.
Contributing Institute: Elektrokeramische Materialien; IFF-EKM
Mikrostrukturforschung; IFF-IMF
Published in: Thin solid films, 429 (2003) S. 282 - 285
Imprint: Amsterdam [u.a.] Elsevier 2003
Physical Description: 282 - 285
DOI: 10.1016/S0040-6090(02)01330-5
Document Type: Journal Article
Research Program: Kondensierte Materie
Materialien, Prozesse und Bauelemente für die Mikro- und Nanoelektronik
Series Title: Thin Solid Films 429
Subject (ZB):
J
transmission electron microscopy
interfacial defect layer
barium strontium titanate
high-density storage
Publikationsportal JuSER
Please use the identifier: http://dx.doi.org/10.1016/S0040-6090(02)01330-5 in citations.

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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.

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