%0 Journal Article %1 WOS:000313848600023 %A Silva, R X %A Paschoal, C W A %A Almeida, R M %A Jr., M Carvalho Castro %A Ayala, A P %A Auletta, Jeffrey T %A Lufaso, Michael W %C PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS %D 2013 %I ELSEVIER SCIENCE BV %J VIBRATIONAL SPECTROSCOPY %K Ceramic; Phase Pyrochlore; Raman; transition} {Bi2Sn2O7; %P 172-177 %R 10.1016/j.vibspec.2012.05.009 %T Temperature-dependent Raman spectra of Bi2Sn2O7 ceramics %V 64 %X The Bi2Sn2O7 Pyrochlore is known to undergo a sequence of structural phase transitions with an increase in temperature. Raman spectroscopy was employed in the investigation of the temperature dependence of the active phonons in the Raman spectrum. We observed 19 broad modes at room temperature, reflecting the low symmetry of the alpha-phase of Bi2Sn2O7. The modes were discussed in relation to the Raman spectra of other pyrochlore-based oxides. The temperature dependence of the phonons evidences the alpha -> beta structural phase transition observed near 127 degrees C. (C) 2012 Elsevier B.V. All rights reserved.

@article{WOS:000313848600023, abstract = {The Bi2Sn2O7 Pyrochlore is known to undergo a sequence of structural phase transitions with an increase in temperature. Raman spectroscopy was employed in the investigation of the temperature dependence of the active phonons in the Raman spectrum. We observed 19 broad modes at room temperature, reflecting the low symmetry of the alpha-phase of Bi2Sn2O7. The modes were discussed in relation to the Raman spectra of other pyrochlore-based oxides. The temperature dependence of the phonons evidences the alpha -> beta structural phase transition observed near 127 degrees C. (C) 2012 Elsevier B.V. All rights reserved.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS}, author = {Silva, R X and Paschoal, C W A and Almeida, R M and Jr., M Carvalho Castro and Ayala, A P and Auletta, Jeffrey T and Lufaso, Michael W}, biburl = {https://www.bibsonomy.org/bibtex/2ee5bbe04df7e4da313c3d66894fbc96b/ppgfis_ufc_br}, doi = {10.1016/j.vibspec.2012.05.009}, interhash = {961d083e3d74b3ae04eb9d8d1f33e29a}, intrahash = {ee5bbe04df7e4da313c3d66894fbc96b}, issn = {0924-2031}, journal = {VIBRATIONAL SPECTROSCOPY}, keywords = {Ceramic; Phase Pyrochlore; Raman; transition} {Bi2Sn2O7;}, pages = {172-177}, publisher = {ELSEVIER SCIENCE BV}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Temperature-dependent Raman spectra of Bi2Sn2O7 ceramics}, tppubtype = {article}, volume = 64, year = 2013 }