High-frequency properties of superconducting Y-Ba-Cu-oxide thin films

High-frequency properties of superconducting Y-Ba-Cu-oxide thin films

rf and microwave properties of superconducting YBa2Cu3O7−x thin films were measured and analyzed using a coplanar resonator structure. The films were developed by sequential electron-beam evaporation of the metals followed by postanneal processing. dc properties of the films were obtained from resis...

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Veröffentlicht in:Journal of applied physics 1992, Vol.71 (1), p.344-346
Hauptverfasser: RAMAKRISHNAN, E. S, SU, M.-Y, HOWNG, W.-Y
Format: Artikel
Sprache:eng
Schlagworte:
360207 - Ceramics, Cermets, & Refractories- Superconducting Properties- (1992-)
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CURRENT DENSITY
FREQUENCY MEASUREMENT
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
HIGH-TC SUPERCONDUCTORS
MATERIALS SCIENCE
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
TEMPERATURE RANGE
TEMPERATURE RANGE 0013-0065 K
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
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Beschreibung
Zusammenfassung:rf and microwave properties of superconducting YBa2Cu3O7−x thin films were measured and analyzed using a coplanar resonator structure. The films were developed by sequential electron-beam evaporation of the metals followed by postanneal processing. dc properties of the films were obtained from resistance-temperature and current-voltage measurements to evaluate the transition temperature and current densities. High-frequency properties were measured from 70 to 10 K and in the frequency range 1–3 GHz to determine the film characteristics as compared to pure copper films on the same substrates.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.350712