期刊
ACTA PHYSICA POLONICA A
卷 116, 期 1, 页码 7-12出版社
POLISH ACAD SCIENCES INST PHYSICS
DOI: 10.12693/APhysPolA.116.7
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Analysis of the relative and absolute Raman intensity is very important and powerful tool which allows to understand and characterize the modifications of the crystal/amorphous structure due to: (i) changes of the symmetry, e.g. substitution of the B site ion by the rare earth/lanthanide one and incorporation of mobile species in the case of high temperature protonic conducting perovskites; (ii) changes of the short/long range order, e.g. existence/disappearance of the nanoregions in the case of PbMg(1/3)Nb(2/3)O(3-x)PbTiO(3) (PMN-PT) relaxor ferroelectric perovskites; (iii) changes of the nanostructure, e.g. depolymerisation of the Si-O network due to the substitution of the Si(4+) ions (and associated covalent bonds) by the M(+) cations (forming ionic bonds) or by the incorporation of the metal nanoprecipitates in the case of glasses, glazes and enamels.
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