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Proceedings Paper

Electronic nanofeatures in epitaxial ferroelectric oxide heterostructures
Author(s): C. H. Ahn; Thomas Tybell; L. Antognazza; Kookrin Char; Malcolm R. Beasley; C. Beeli; Paul A. Stadelmann; Oystein Fischer; Jean-Marc Triscone
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Paper Abstract

We report on ferroelectric field effect experiments in epitaxial oxide heterostructures consisting of the ferroelectric oxide Pb(Zr,Ti)O3 and the metallic oxides GdBa2Cu3O7 and SrRuO3. To perform the experiments, we used conventional capacitor structures, as well as a scanning probe approach that allows one to control the local ferroelectric polarization without the use of permanent electrical contacts. In the case of the scanning probe approach, nanometer scale control of the ferroelectric domain structure can be achieved over large areas of up to 2500 micrometer2. Nonvolatile, reversible electronic nanofeatures were written in Pb(Zr0.52Ti0.48)O3/SrRuO3 heterostructures by switching the local polarization field of the ferroelectric layer, inducing a field effect in the thin (30 angstrom) SrRuO3 layer that changes its sheet resistance by 7%. This doping technique permits one to write reversible, nonvolatile electronic structures without requiring traditional lithographic processing or permanent electrical contacts.

Paper Details

Date Published: 22 December 1998
PDF: 7 pages
Proc. SPIE 3481, Superconducting and Related Oxides: Physics and Nanoengineering III, (22 December 1998); doi: 10.1117/12.335881
Show Author Affiliations
C. H. Ahn, Univ. de Geneve (Switzerland)
Thomas Tybell, Univ. de Geneve (Norway)
L. Antognazza, Univ. de Geneve (Switzerland)
Kookrin Char, Stanford Univ. (United States)
Malcolm R. Beasley, Stanford Univ. (United States)
C. Beeli, Ecole Polytechnique Federale de Lausanne (Switzerland)
Paul A. Stadelmann, Ecole Polytechnique Federale de Lausanne (United States)
Oystein Fischer, Univ. de Geneve (Switzerland)
Jean-Marc Triscone, Univ. de Geneve (Switzerland)

Published in SPIE Proceedings Vol. 3481:
Superconducting and Related Oxides: Physics and Nanoengineering III
Davor Pavuna; Ivan Bozovic, Editor(s)

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