Combinatorial discovery of a lead-free morphotropic phase boundary in a thin-film piezoelectric perovskite

Autor:	Fujino, S., Murakami, M., Varatharajan, A., Lim, S. -H., Nagarajan, V., Fennie, C. J., Wuttig, M., Salamanca-Riba, L., Takeuchi, I.
Rok vydání:	2008
Předmět:	Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
DOI:	10.1063/1.2931706
Popis:	We report on the discovery of a lead-free morphotropic phase boundary in Sm doped BiFeO3 with a simple perovskite structure using the combinatorial thin film strategy. The boundary is a rhombohedral to pseudo-orthorhombic structural transition which exhibits a ferroelectric (FE) to antiferroelectric (AFE) transition at approximately Bi0.86Sm0.14FeO3 with dielectric constant and out-of-plane piezoelectric coefficient comparable to those of epitaxial (001) oriented Pb(Zr,Ti)O3 (PZT) thin films at the MPB. The discovered composition may be a strong candidate of a Pb-free piezoelectric replacement of PZT. Comment: 16 pages, 5 figures, submitted to Applied Physics Letters
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0803.0042 Zobrazit plný text záznamu View this record from Arxiv