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Journal of Microwave Power
and Electromagnetic Energy (JMPEE) |
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TITLE |
Dielectric Behavior of SrTiO3 and YiBa2CU3Ox at 10.6 GHz Using a
Microwave Resonant Cavity as a Probe [PDF] |
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AUTHORS |
J. N. Dahiya and J.A. Roberts 2000 35 2 105-119 |
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Abstract A cylindrical microwave resonant cavity operating in the TE011
mode was used to study the dielectric response of SrTiO3 and YiBa2CU3Ox.
The microwave dielectric response of the powdered samples of these materials
is studied as a junction temperature at a frequency of 10.6 GHz. For this
study, a very precise heating and cooling system was designed to control the
temperature accurately to a tenth of a degree. The real and imaginary parts
of the complex permittivity were studied using Slater's Perturbation
equations. The relaxation times of these materials are derived using Debye's
equations for polar molecules. Key Words: Microwave spectrometer, resonant cavity, dielectric relaxation, ferroelectric material, high temperature superconductor. |
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