NONLINEARITY AND MICROWAVE LOSSES IN CUBIC STRONTIUM-TITANATE

Journal Article · Sat Jul 01 04:00:00 EDT 1961 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.123.97· OSTI ID:4030769

Rupprecht, G; Bell, R O; Silverman, B B

The complex dielectric constant of single-crystal strontium titanate is measured from 90 to 230 deg K at microwave frequencies. The real part of the dielectric constant consists of a large field-independent contribution thst obeys a CurieWeiss law over the entire range of measurement, plus a smaller anisotropic field-dependent contribution. These results are shown to be in qualitative agreement with the theory of ferroelectnicity in perovskite structures. The observed loss tangent consists of a contribution that is quadratic in an applied biasing field plus a field-independent contribution. The field-independent loss tangent goes through a minimum at about 170 deg with a much steeper slope on the low-temperature side of the minimum than on the hightemperature side. The behavior of the field-independent loss tangent is discussed. (auth)

• Research Organization: Raytheon Co., Waltham, Mass.
• NSA Number: NSA-15-024019
• OSTI ID: 4030769
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 123; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANISOTROPY
CALCIUM OXIDES
CONFIGURATION
CURIE POINT
CURIE- WEISS LAW
DIELECTRICS
ELECTRIC FIELDS
ELECTRICITY
FERROELECTRIC MATERIALS
FERROMAGNETIC MATERIALS
LOSSES
LOW TEMPERATURE
MEASURED VALUES
METALS, CERAMICS, AND OTHER MATERIALS
MICROWAVES
MONOCRYSTALS
PEROVSKITE
STANDARDS
STRONTIUM COMPOUNDS
SUSCEPTIBILITY
TITANIUM OXIDES