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Título

Macroscopic ferroelectricity and piezoelectricity in nanostructured BiScO3–PbTiO3 ceramics

AutorAlgueró, Miguel ; Amorín, Harvey; Hungría, Teresa ; Galy, Jean ; Castro, Alicia
Palabras claveBismuth compounds
Ferroelectric Curie temperature
Ferroelectric switching
Ferroelectric transitions
Lead compounds
Fecha de publicación5-ene-2009
EditorAmerican Institute of Physics
CitaciónApplied Physics Letters 94(1): 012902 (2009)
ResumenWe have studied the macroscopic electrical properties of highly dense, nanostructured ceramics of BiScO3–PbTiO3 with high Curie temperature and piezoelectric activity. Materials were processed by spark plasma sintering of nanocrystalline powder obtained by mechanosynthesis. Results indicate that the nanostructured material still presents the ferroelectric transition above 700 K. Ferroelectric switching is unambiguously demonstrated. Furthermore, ceramic disks were poled and their radial piezoelectric resonance was excited, which has not been achieved in nanostructured BaTiO3 ceramics.
Descripción3 pages, 4 figures.-- PACS: 77.80.Bh; 73.61.Ng; 77.84.Dy; 77.80.Fm; 81.20.Ev
Versión del editorhttp://dx.doi.org/10.1063/1.3056660
URIhttp://hdl.handle.net/10261/21650
DOI10.1063/1.3056660
ISSN0003-6951
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