Raman spectra, photoluminescence and dielectric relaxation in Bi 1.5 ZnNb 1.5 O 7 pyrochlore
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Liu, Yun; Withers, Raymond; Chen, Hua; Li, Qing; Tan, Hark Hoe
Description
In this paper we investigate the origin of the dielectric relaxation characteristic of the nominally Bi1.5ZnNb1.5O7 (BZN) pyrochlore by a combined investigation of its electron diffraction and temperature-dependent micro-Raman spectra as well as its associated photoluminescence. It is found that the structural disorder and associated structural relaxation in BZN originates from short range chemical ordering of Bi/Zn in the A site of A2B2O7 pyrochlores, which can make a contribution to the...[Show more]
Collections | ANU Research Publications |
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Date published: | 2011 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/69710 |
Source: | Current Applied Physics |
DOI: | 10.1016/j.cap.2011.03.014 |
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01_Liu_Raman_spectra,_2011.pdf | 558.34 kB | Adobe PDF | Request a copy | |
02_Liu_Raman_spectra,_2011.pdf | 534.49 kB | Adobe PDF | Request a copy |
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