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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

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

Revista

Título: Applied Physics A: Materials Science and Processing

Vol. 113

Páginas: 379-384

ISSN: 0947-8396

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 10 Citações

Scopus - 8 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia dos materiais

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6