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|Title:||Influence of laser repetition rate on ferroelectric properties of pulsed laser deposited BaTiO3 films on platinized silicon substrate|
|Author(s):||Silva, J. P. B.|
Sekhar, K. C.
Moreira, J. Agostinho
Pereira, Mário R.
Gomes, M. J. M.
|Journal:||Applied Physics A: Materials Science & Processing|
|Abstract(s):||BaTiO3 thin films were deposited by pulsed laser deposition on Pt–Si at different laser pulse repetition frequencies. X-ray diffraction spectra show that preferred oriented films can be grown by adjusting the pulse repetition frequency. Enhanced dielectric and ferroelectric properties obtained in films deposited at 1 Hz is attributed to preferred orientation, low strain and homogeneous grain distribution. The films deposited at 1 Hz show an impressive remanent polarization of 21.4 µC/cm2 with a coercive field of 70.0 kV/cm. The shift in Curie temperature, which stems from changing the laser pulse repetition frequency, is associated with the strain state in the film.|
|Access:||Restricted access (UMinho)|
|Appears in Collections:||CDF - FMNC - Artigos/Papers (with refereeing)|
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