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The electronic conduction mechanism in barium strontium titanate thin films

1998; American Institute of Physics; Volume: 73; Issue: 24 Linguagem: Inglês

10.1063/1.122827

1520-8842

Sufi Zafar, Robert E. Jones, Bo Jiang, Bruce White, V. Kaushik, S.J. Gillespie,

Microwave Dielectric Ceramics Synthesis

In the literature, the Schottky emission equation is widely used to describe the conduction mechanism in perovskite-type titanate thin films. Though the equation provides a good fit to the leakage current data, the extracted values of the Richardson and dielectric constants are inconsistent with their experimental values. In this work, a modified Schottky equation is applied. This equation resolves the difficulties associated with the standard Schottky equation. Also, the electronic mobility in thin films of barium strontium titanate is reported.