Probing of local ferroelectricity in BiFeO3 thin films and (BiFeO3)m(SrTiO3)m superlattices

Autor:	Ranjith, R., Luders, U., Prellier, W., Da Costa, A., Dupont, I., Desfeux, R.
Rok vydání:	2009
Předmět:	Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
DOI:	10.1016/j.jmmm.2009.02.116
Popis:	Ferroelectric BiFeO3 thin films and artificial superlattices of (BiFeO3)m(SrTiO3)m (m~ 1 to 10 unit cells) were fabricated on (001)-oriented SrTiO3 substrates by pulsed laser ablation. The variation of leakage current and macroscopic polarization with periodicity was studied. Piezo force microscopy studies revealed the presence of large ferroelectric domains in the case of BiFeO3 thin films while a size reduction in ferroelectric domains was observed in the case of superlattice structures. The results show that the modification of ferroelectric domains through superlattice, could provide an additional control on engineering the domain wall mediated functional properties. Comment: 14 pages, To be published in J. Mag. Mag Mater. proceedings of EMRS 2008
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0902.3164 Zobrazit plný text záznamu View this record from Arxiv