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Monoclinic crystal structure of polycrystalline Na[sub 0.5]Bi[sub 0.5]TiO[sub 3]
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Aksel, Elena, Forrester, Jennifer S., Jones, Jacob L., Thomas, Pam A., Page, Katharine and Suchomel, Matthew R. (2011) Monoclinic crystal structure of polycrystalline Na[sub 0.5]Bi[sub 0.5]TiO[sub 3]. Applied Physics Letters, Vol.98 (No.15). article no. 152901. doi:10.1063/1.3573826 ISSN 0003-6951.
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Official URL: http://dx.doi.org/10.1063/1.3573826
Abstract
Bismuth-based ferroelectric ceramics are currently under intense investigation for their potential as Pb-free alternatives to lead zirconate titanate-based piezoelectrics. Na(0.5)Bi(0.5)TiO(3) (NBT), one of the widely studied compositions, has been assumed thus far to exhibit the rhombohedral space group R3c at room temperature. High-resolution powder x-ray diffraction patterns, however, reveal peak splitting in the room temperature phase that evidence the true structure as monoclinic with space group Cc. This peak splitting and Cc space group is only revealed in sintered powders; calcined powders are equally fit to an R3c model because microstructural contributions to peak broadening obscure the peak splitting. (C) 2011 American Institute of Physics. [doi:10.1063/1.3573826]
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Applied Physics Letters | ||||
Publisher: | American Institute of Physics | ||||
ISSN: | 0003-6951 | ||||
Official Date: | 2011 | ||||
Dates: |
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Volume: | Vol.98 | ||||
Number: | No.15 | ||||
Page Range: | article no. 152901 | ||||
DOI: | 10.1063/1.3573826 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Funder: | U.S. National Science Foundation (NSF) , U.S. Department of the Army , U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences | ||||
Grant number: | DMR-0746902 (NSF) ; W911NF-09-1-0435 U.S. Department of the Army ; DE-AC02-06CH11357 U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences |
Data sourced from Thomson Reuters' Web of Knowledge
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