Comparison on the effect of (La0.5Sr0.5)MnO3 and (La0.5Sr0.5)CoO3 buffer layers on fatigue properties of (Pb0.6Sr0.4)TiO3 thin films prepared by pulsed laser deposition

Hsiu Fung Cheng, Yi Chun Chen, Chen Chia Chou, Kuang Chung Chang, Chun Shu Hou, I. Nan Lin

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Abstract

The fatigue properties of (Pb0.6Sr0.4)TiO3 (PSrTO) thin films deposited using (La0.5Sr0.5)MnO3 (LSMO) materials as buffer layer were compared with those of the films grown using (La0.5Sr0.5)CoO3 (LSCO) materials as buffer layer. The extent of degradation induced by polarization switching for 1 × 1010 cycles with 210 kV/cm maximum field, which is four times of coercive field (Ec), is less pronounced for PSrTO/LSMO/Pt(Si) thin films than that for PSrTO/ LSCOTPt(Si) films. This phenomenon is ascribed to the smaller strain induced in PSrTO/LSMO/ Pt(Si) materials. Moreover, the pulse response testing indicates that the degradation of the films mainly occurs at PSrTO-to-LSMO (or PSrTO-to-LSCO) interface.

Original languageEnglish
Pages (from-to)8695-8699
Number of pages5
JournalJournal of Applied Physics
Volume87
Issue number12
DOIs
Publication statusPublished - 2000 Jun 15

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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