Growth and electrical performance of Pb(Mg{sub 1/3}Nb{sub 2/3})O{sub 3}-PbTiO{sub 3}-Pb(Fe{sub 1/2}Nb{sub 1/2})O{sub 3} single crystals
- Department of Chemistry, Tsinghua University, Beijing 100084 (China)
- School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083 (China)
For the first time, we have grown ferroelectric single crystals Pb(Mg{sub 1/3}Nb{sub 2/3})O{sub 3}-PbTiO{sub 3}-Pb(Fe{sub 1/2}Nb{sub 1/2})O{sub 3} (PMN-PT-PFN) from the melt by the simple slow cooling process. The chemical composition of the single crystals PMN-PT-PFN (0.59/0.31/0.10) is near the morphotropic phase boundary (MPB). X-ray diffraction (XRD) was used to study phase structure of the as-grown crystals, energy dispersive X-ray spectrometer (EDS) and electron probe micro-analyzer (EPMA) were employed to confirm the chemical composition and element distribution of the as-grown crystals, respectively. The ferroelectric, dielectric and piezoelectric properties of the as-grown PMN-PT-PFN (0.59/0.31/0.10) single crystal oriented along the (0 0 1) axis were measured, which showed that the remnant polarization (P{sub r}), coercive electric fields (E{sub c}), the Curie temperature (T{sub c}) and the piezoelectric coefficient (d{sub 33}) were 50.2 {mu}C/cm{sup 2}, 13.9 kV/cm, 158 deg. C and about 1800 pC/N, respectively. All the results indicated that the PMN-PT-PFN (0.59/0.31/0.10) single crystals are promising for applying to field of high frequency.
- OSTI ID:
- 22029772
- Journal Information:
- Materials Research Bulletin, Vol. 44, Issue 6; Other Information: Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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