Dielectric materials based on the solid solution system (100 - x) (La0.1Bi0.9)Ti2O7-xSrTiO3 have been studied in order to obtain high performance capacitor materials. Compositions with temperature coefficient of capacitance as low as τC < 20 ppm and dielectric constant as high as 250 make them suitable for negative-positive-zero (NPO) capacitor designated applications. Using X-ray diffraction, a three-phase mixture of the two end members, SrTiO3, (La0.1Bi0.9)Ti2O7, and a Bismuth-layer structure phase with only a limited amount of solid solution was observed. The low-temperature coefficient of capacitance was believed to be the result of the balancing of the positive and negative temperature coefficients characteristic of the three constituent phases.
|Original language||English (US)|
|Number of pages||5|
|Journal||Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers|
|Issue number||3 SUPPL. A|
|State||Published - Mar 1997|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)