Low-temperature dielectric properties of candidate substrates for high-temperature superconductors: LaAlO sub 3 and ZrO sub 2 : 9. 5 mol % Y sub 2 O sub 3
Journal Article
·
· Journal of Applied Physics; (USA)
- Sandia National Laboratories, Albuquerque, New Mexico 87185 (USA)
The effects of temperature (4--400 K), hydrostatic pressure and frequency on the dielectric constant, {epsilon}{prime}, and dielectric loss of single crystals of LaAlO{sub 3} and cubic yttria(9.5 mol %)-stabilized zirconia (ZrO{sub 2}) were investigated. Both crystals are relatively low-loss, low-dispersion dielectrics in the temperature range ({ital T}{lt}150 K) of most interest for high-temperature superconductors. The pressure results make it possible to evaluate the various contributions to the temperature dependence of {epsilon}{prime}. It is found that this dependence is dominated by the change of polarizability with volume. The dielectric properties of the two crystals are compared with those of other candidate substrate materials.
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6290350
- Journal Information:
- Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 68:8; ISSN 0021-8979; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALUMINATES
ALUMINIUM COMPOUNDS
CHALCOGENIDES
DIELECTRIC PROPERTIES
ELECTRICAL PROPERTIES
FILMS
FREQUENCY DEPENDENCE
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
LOW TEMPERATURE
MEDIUM TEMPERATURE
NATIONAL ORGANIZATIONS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLARIZABILITY
PRESSURE DEPENDENCE
RARE EARTH COMPOUNDS
SANDIA LABORATORIES
SUBSTRATES
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
ULTRALOW TEMPERATURE
US AEC
US DOE
US ERDA
US ORGANIZATIONS
VERY LOW TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALUMINATES
ALUMINIUM COMPOUNDS
CHALCOGENIDES
DIELECTRIC PROPERTIES
ELECTRICAL PROPERTIES
FILMS
FREQUENCY DEPENDENCE
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
LOW TEMPERATURE
MEDIUM TEMPERATURE
NATIONAL ORGANIZATIONS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLARIZABILITY
PRESSURE DEPENDENCE
RARE EARTH COMPOUNDS
SANDIA LABORATORIES
SUBSTRATES
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
ULTRALOW TEMPERATURE
US AEC
US DOE
US ERDA
US ORGANIZATIONS
VERY LOW TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES