The permittivity and dielectric loss tangent of bulk strontium titanate were measured from 4 to 3pp K, at frequencies from 400 MHz to 3.8 GHz, using a dielectric rod-resonator technique. Single-crystal and ceramic SrTiO3 samples were both investigated. Significant differences in permittivity and losses were observed between single-crystal and ceramic materials at cryogenic temperatures. When measured at liquid nitrogen temperatures, the single-crystal sample dielectric loss tangent was approximately 10-4.
Proceedings Title: Proc., Intl. Microwave Conf. MIKON
Conference Dates: May 15, 2000
Conference Location: Warsaw, PL
Pub Type: Conferences
dielectrics, loss, microwave, resonator, strontium titante, temperature