Artículos de revistas
Physical properties of strontium barium niobate thin films prepared by polymeric chemical method
Fecha
2016-01-01Registro en:
Ferroelectrics. Abingdon: Taylor & Francis Ltd, v. 496, n. 1, p. 177-186, 2016.
0015-0193
10.1080/00150193.2016.1155035
WOS:000374630800020
WOS000374630800020.pdf
Autor
Universidade Estadual Paulista (Unesp)
Ural Fed Univ
Univ Aveiro
Institución
Resumen
Randomly oriented Sr0.75Ba0.25Nb2O6 thin films have been deposited on Pt(111)/Ti/SiO2/Si substrates using a polymeric chemical method to study their physical properties. Refinements of the structure confirm the stoichiometry of the studied films. The relaxor behavior is evidenced by the dielectric measurements and Vogel-Fulcher analysis of the dielectric curves. Lowering the transition temperature (T-m) by about 100K and asymmetries in the local hysteresis loops well above T-m are discussed in terms of the existence of complex defects in thin films.