%0 Journal Article %1 WOS:000284023100033 %A Remedios, C M R %A Paraguassu, W %A Saraiva, G D %A Pereira, D P %A de Oliveira, P C %A Freire, P T C %A Mendes-Filho, J %A Melo, F E A %A dos Santos, A O %C COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA %D 2010 %I WILEY-BLACKWELL %J JOURNAL OF RAMAN SPECTROSCOPY %K crystal; doped ferroelectricity} phase piezoelectricity; transition; {KDP; %N 10 %P 1318-1322 %R 10.1002/jrs.2592 %T Temperature-dependent Raman scattering of KDP : Mn (0.9% weight of Mn) crystal %V 41 %X Low temperature polarized Raman scattering measurements of KDP : Mn (0.9% weight of Mn) were performed at temperatures ranging from 14 to 300 K, over the spectral range 50-1250 cm(-1). In the present results we can see that the spectra of undoped and doped samples at room temperature are very different. Doped samples maintain the KDP structure as tetragonal, with the same factor group D(2d) but with a different class of the space group, different from the original 12. The results show that the crystal undergoes a phase transition at temperature between 115 and 97 K, which is much lower than the phase transition temperature of undoped KDP that occurs at 122 K, where the crystal changes from the para-electric to the ferroelectric phase. Further, at very low temperature (14 K) we can see that the spectra of KDP : Mn (0.9% weight of Mn) present a behavior very different from the behavior presented by the spectra of KDP doped with low Mn concentration. Copyright (C) 2010 John Wiley & Sons, Ltd.

@article{WOS:000284023100033, abstract = {Low temperature polarized Raman scattering measurements of KDP : Mn (0.9% weight of Mn) were performed at temperatures ranging from 14 to 300 K, over the spectral range 50-1250 cm(-1). In the present results we can see that the spectra of undoped and doped samples at room temperature are very different. Doped samples maintain the KDP structure as tetragonal, with the same factor group D(2d) but with a different class of the space group, different from the original 12. The results show that the crystal undergoes a phase transition at temperature between 115 and 97 K, which is much lower than the phase transition temperature of undoped KDP that occurs at 122 K, where the crystal changes from the para-electric to the ferroelectric phase. Further, at very low temperature (14 K) we can see that the spectra of KDP : Mn (0.9% weight of Mn) present a behavior very different from the behavior presented by the spectra of KDP doped with low Mn concentration. Copyright (C) 2010 John Wiley & Sons, Ltd.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA}, author = {Remedios, C M R and Paraguassu, W and Saraiva, G D and Pereira, D P and de Oliveira, P C and Freire, P T C and Mendes-Filho, J and Melo, F E A and dos Santos, A O}, biburl = {https://www.bibsonomy.org/bibtex/29a549f691ff8f89a63fcd6afb67e06ee/ppgfis_ufc_br}, doi = {10.1002/jrs.2592}, interhash = {2eacaf95ea0ba3b7876bb298a1e2a460}, intrahash = {9a549f691ff8f89a63fcd6afb67e06ee}, issn = {0377-0486}, journal = {JOURNAL OF RAMAN SPECTROSCOPY}, keywords = {crystal; doped ferroelectricity} phase piezoelectricity; transition; {KDP;}, number = 10, pages = {1318-1322}, publisher = {WILEY-BLACKWELL}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Temperature-dependent Raman scattering of KDP : Mn (0.9% weight of Mn) crystal}, tppubtype = {article}, volume = 41, year = 2010 }