Temperature-dependent Raman spectra of Bi2Sn2O7 ceramics

R.X. Silva; C.W.A. Paschoal; R.M. Almeida; M. Carvalho Castro; A.P. Ayala; Jeffrey T. Auletta; Michael W. Lufaso

doi:10.1016/j.vibspec.2012.05.009

Temperature-dependent Raman spectra of Bi2Sn2O7 ceramics

R.X. Silva, C.W.A. Paschoal, R.M. Almeida, M. Carvalho Castro, A.P. Ayala, Jeffrey T. Auletta, Michael W. Lufaso

Producción científica: Article › revisión exhaustiva

Resumen

The Bi 2Sn 2O 7 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 α-phase of Bi 2Sn 2O 7.

Idioma original	American English
Páginas (desde-hasta)	172-177
Número de páginas	6
Publicación	Vibrational Spectroscopy
Volumen	64
DOI	https://doi.org/10.1016/j.vibspec.2012.05.009
Estado	Published - ene 2013

Disciplines

Business Intelligence
Physics
Quantum Physics
Mineral Physics

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10.1016/j.vibspec.2012.05.009Licencia: Unspecified

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abstract = "The Bi 2Sn 2O 7 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 α-phase of Bi 2Sn 2O 7.",

keywords = "Bi2Sn2O7, Pyrochlore, Raman, Ceramic, Phase transition",

author = "R.X. Silva and C.W.A. Paschoal and R.M. Almeida and Castro, {M. Carvalho} and A.P. Ayala and Auletta, {Jeffrey T.} and Lufaso, {Michael W.}",

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doi = "10.1016/j.vibspec.2012.05.009",

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AU - Silva, R.X.

AU - Paschoal, C.W.A.

AU - Almeida, R.M.

AU - Castro, M. Carvalho

AU - Ayala, A.P.

AU - Auletta, Jeffrey T.

AU - Lufaso, Michael W.

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N2 - The Bi 2Sn 2O 7 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 α-phase of Bi 2Sn 2O 7.

AB - The Bi 2Sn 2O 7 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 α-phase of Bi 2Sn 2O 7.

KW - Bi2Sn2O7

KW - Pyrochlore

KW - Raman

KW - Ceramic

KW - Phase transition

U2 - 10.1016/j.vibspec.2012.05.009

DO - 10.1016/j.vibspec.2012.05.009

M3 - Article

SN - 1873-3697

VL - 64

SP - 172

EP - 177

JO - Vibrational Spectroscopy

JF - Vibrational Spectroscopy

ER -