Anomalous conductivity in PZT thin film deposited on copper substrate electrode

Andrei Th Ionescu (1) , Anca-Luiza Alexe-Ionescu (2) , Salvatore Marino (3) , Marco Castriota (3) , Giuseppe Strangi (3) , Gaetano Nicastro (3) , Nicola Scaramuzza (4)

1 Facultatea de Fizica
2 Departamentul de Fizica
3 department of physics
4 CNR-IPCF - Department of Physics

Electrical properties of ferroelectric films are influenced by many factors among which the methods of synthesizing the ferroelectric film itself and the characteristics of the substrate electrode. Conductivity measurements were performed on PZT (lead zirconate titanate) thin films deposited by sol-gel synthesis on a copper electrode aiming to investigate the electric properties and to individuate the predominant charge carriers of such samples. A semiconducting PZT/Cu interface appears during the thermal treatment influencing severely the electric conduction. A power law, describing the transport mechanism across PZT film, has been found empirically.

Mots clés: Physical Sciences

Andrei Th Ionescu, Anca-Luiza Alexe-Ionescu, Salvatore Marino, Marco Castriota, Giuseppe Strangi, et al.. Anomalous conductivity in PZT thin film deposited on copper substrate electrode. Philosophical Magazine, 2010, 90 (13), pp.1733-1742. ⟨10.1080/14786430903463529⟩. ⟨hal-00587294⟩