Bibliographic Details
| Title: |
Thermal Treatment Effects in PbTiO 3 Crystals Studied by XPS and Electric Conductivity Tests. |
| Authors: |
Pilch, M.1,2, Molak, A.1, Szot, K.1,2 |
| Source: |
Ferroelectrics. Jul2014, Vol. 466 Issue 1, p51-62. 12p. |
| Subjects: |
Lead titanate, Thermal properties of crystals, X-ray photoelectron spectroscopy, Electric conductivity, Annealing of crystals, Crystal growth, Crystallography |
| Abstract: |
The as-grown aged and thermally annealed at 720 K and 820 K PbTiO3crystals were prepared. Theɛ′(T,f) and σAC(T,f) were measured at radio frequencies. Samples heated at 720 K shown resistive switching to metallic-typeσAC(T). The resistivity switching was confirmed byRDC(T) measurement. The samples annealed at 820 K were rejuvenated, exhibited Curie-Weiss dependence aboveTC= 750 K and semiconductor conductivity. Annealing induced changes in shape of the Pb 4f, Ti 2p, O 1s, and VB XPS lines. We propose a model related to ionic migration toward FE domain walls and to vortices which provide conducting channels. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
