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Y-Ba-Cu-O/PZT Current Controllable Distributed RC-Element

Published online by Cambridge University Press:  15 February 2011

J. Hagberg ,
J. Levoska ,
S. Leppävuori  and
T. Murtoniemi
J. Hagberg
Affiliation:
Microelectronics and Material Physics Laboratories, University of Oulu, FIN-90570 Oulu, Finland
J. Levoska
Affiliation:
Microelectronics and Material Physics Laboratories, University of Oulu, FIN-90570 Oulu, Finland
S. Leppävuori
Affiliation:
Microelectronics and Material Physics Laboratories, University of Oulu, FIN-90570 Oulu, Finland
T. Murtoniemi
Affiliation:
Microelectronics and Material Physics Laboratories, University of Oulu, FIN-90570 Oulu, Finland
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Abstract

A superconducting, current controllable, distributed RC-component was designed and fabricated. The component consisted of YBa2Cu3O7 (YBCO) thin film resistor, which was covered with a dielectric layer and an electrode to form a capacitor. The YBCO thin film was deposited by pulsed laser ablation on a SiTiO3 (100) substrate. It was patterned by photolithography and wet etched to form a tapered strip. This YBCO strip was covered with a lead zirconate titanate layer made by laser ablation and, finally, the dielectric layer was covered with a gold electrode by vacuum evaporation. The electrical characteristics of the superconducting YBCO film and the -element were measured.

Using the constructed component, high-pass and notch filter circuits were demonstrated. It was possible to control the electrical properties of these filters by a dc-current applied through the YBCO strip which causes the superconducting film to be come partly resistive.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 361: Symposium I2 – Ferroelectric Thin Films IV , 1994 , 607
Copyright
Copyright © Materials Research Society 1995

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References

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