Raman spectra, photoluminescence and dielectric relaxation in Bi 1.5 ZnNb 1.5 O 7 pyrochlore
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|
|Source:||Current Applied Physics|
|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|
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.