Influence of laser repetition rate on ferroelectric properties of pulsed laser deposited BaTiO3 films on platinized silicon substrate

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Silva, JPB (Author) Other; Sekhar, KC (Author) Other; Almeida, A (Author) FCUP; Agostinho Moreira, JA (Author) FCUP; Pereira, M (Author) Other; Gomes, MJM (Author) Other

Journal

Title: Applied Physics A: Materials Science and Processing

Vol. 113

Pages: 379-384

ISSN: 0947-8396

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 10 Citations

Scopus - 8 Citations

Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-006-6E5

DOI: 10.1007/s00339-013-7948-0

Abstract (EN): 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 mu C/cm(2) 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6