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

Research output: Contribution to journal › Article › peer-review

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.

Original language	American English
Pages (from-to)	172-177
Number of pages	6
Journal	Vibrational Spectroscopy
Volume	64
DOIs	https://doi.org/10.1016/j.vibspec.2012.05.009
State	Published - Jan 2013

Keywords

Bi2Sn2O7
Pyrochlore
Raman
Ceramic
Phase transition

Disciplines

Business Intelligence
Physics
Quantum Physics
Mineral Physics

Access to Document

10.1016/j.vibspec.2012.05.009License: Unspecified

Cite this

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title = "Temperature-dependent Raman spectra of Bi2Sn2O7 ceramics",

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.}",

note = "R.X. Silva, C.W.A. Paschoal, R.M. Almeida, M. Carvalho Castro, A.P. Ayala, Jeffrey T. Auletta, Michael W. Lufaso. (2013) Temperature-dependent Raman spectra of Bi2Sn2O7 ceramics. Vibrational Spectroscopy 64, Pages 172-177. https://doi.org/10.1016/j.vibspec.2012.05.009. ",

year = "2013",

month = jan,

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

language = "American English",

volume = "64",

pages = "172--177",

journal = "Vibrational Spectroscopy",

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T1 - Temperature-dependent Raman spectra of Bi2Sn2O7 ceramics

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.

N1 - R.X. Silva, C.W.A. Paschoal, R.M. Almeida, M. Carvalho Castro, A.P. Ayala, Jeffrey T. Auletta, Michael W. Lufaso. (2013) Temperature-dependent Raman spectra of Bi2Sn2O7 ceramics. Vibrational Spectroscopy 64, Pages 172-177. https://doi.org/10.1016/j.vibspec.2012.05.009.

PY - 2013/1

Y1 - 2013/1

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 -