Abstract
We report the finding of two new effects in the current conduction through ferroelectric films: a temperature-induced abrupt conductance change and an effect similar to the positive-temperature-coefficient-of-resistance (PTCR). Here, we use mostly the lattice-mismatched epitaxial heterostructure BaTiO 3 /(La,Sr) 2 CuO 4 . The results should provide an insight into the insulator-metal transition in insulators and the new class of the thin-film PTCR.
Original language | English |
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Pages (from-to) | 159-167 |
Number of pages | 9 |
Journal | Ferroelectrics |
Volume | 335 |
DOIs | |
Publication status | Published - Jul 1 2006 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics