%0 Journal Article %1 WOS:000221769300029 %A Maczka, M %A Paraguassu, W %A Souza, AG %A Freire, PTC %A Mendes, J %A Melo, FEA %A Hanuza, J %C 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA %D 2004 %I ACADEMIC PRESS INC ELSEVIER SCIENCE %J JOURNAL OF SOLID STATE CHEMISTRY %K Raman phase pressure; spectra} transition; {high %N 6 %P 2002-2006 %R 10.1016/j.jssc.2004.01.021 %T High-pressure Raman study of Al-2(WO4)(3) %V 177 %X A high-pressure Raman scattering study of the tungstate Al-2(WO4)(3) is presented. This study showed the onset of two reversible phase transitions at 0.28 +/- 0.07 and 2.8 +/- 0.1 GPa. The pressure evolution of Raman bands provides strong evidences that both the transitions involve rotations/tilts of nearly rigid tungstate tetrahedra and that the structure of the stable phase in the 0.28-2.8 GPa range may be the same as the structure of the ambient pressure, low-temperature monoclinic (C-2h(5)), ferroelastic phase of Al-2(WO4)(3). (C) 2004 Elsevier Inc. All rights reserved.

@article{WOS:000221769300029, abstract = {A high-pressure Raman scattering study of the tungstate Al-2(WO4)(3) is presented. This study showed the onset of two reversible phase transitions at 0.28 +/- 0.07 and 2.8 +/- 0.1 GPa. The pressure evolution of Raman bands provides strong evidences that both the transitions involve rotations/tilts of nearly rigid tungstate tetrahedra and that the structure of the stable phase in the 0.28-2.8 GPa range may be the same as the structure of the ambient pressure, low-temperature monoclinic (C-2h(5)), ferroelastic phase of Al-2(WO4)(3). (C) 2004 Elsevier Inc. All rights reserved.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA}, author = {Maczka, M and Paraguassu, W and Souza, AG and Freire, PTC and Mendes, J and Melo, FEA and Hanuza, J}, biburl = {https://www.bibsonomy.org/bibtex/2d80dac17712b444cd215df5435d6a177/ppgfis_ufc_br}, doi = {10.1016/j.jssc.2004.01.021}, interhash = {f92cb24d05de151eb11e1d962442ed55}, intrahash = {d80dac17712b444cd215df5435d6a177}, issn = {0022-4596}, journal = {JOURNAL OF SOLID STATE CHEMISTRY}, keywords = {Raman phase pressure; spectra} transition; {high}, number = 6, pages = {2002-2006}, publisher = {ACADEMIC PRESS INC ELSEVIER SCIENCE}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {High-pressure Raman study of Al-2(WO4)(3)}, tppubtype = {article}, volume = 177, year = 2004 }