Spin-phonon interactions of multiferroic Bi4Ti3O 12-BiFeO3 ceramics: Low-temperature Raman scattering and infrared reflectance spectra investigations

P. P. Jiang; X. L. Zhang; P. Chang; Z. G. Hu; W. Bai; Y. W. Li

doi:10.1063/1.4870054

Spin-phonon interactions of multiferroic Bi₄Ti₃O ₁₂-BiFeO₃ ceramics: Low-temperature Raman scattering and infrared reflectance spectra investigations

P. P. Jiang
, X. L. Zhang
, P. Chang
, Z. G. Hu^*
, W. Bai
, Y. W. Li

^*Corresponding author for this work

School of Physics and Electronic Science

East China Normal University

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

25 Scopus citations

Abstract

Optical phonons of multiferroic Bi₄Ti₃O ₁₂-BiFeO₃ ceramic have been investigated by low temperature Raman scattering and infrared reflectance spectra. Anomalies at about 85 K can be observed from the temperature dependence of the Raman and infrared modes, which arise from spin-phonon interaction during antiferromagnetic to paramagnetic phase transition. It was found that the change of exchange interaction in magnetic phase transition can be induced by Fe-O-Fe octahedral tilting driven from the A-site atoms. Moreover, ferroelectricity- related displacement of Bismuth atoms suggests the coupling of magnetic and ferroelectric orders.

Original language	English
Article number	144101
Journal	Journal of Applied Physics
Volume	115
Issue number	14
DOIs	https://doi.org/10.1063/1.4870054
State	Published - 14 Apr 2014

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title = "Spin-phonon interactions of multiferroic Bi4Ti3O 12-BiFeO3 ceramics: Low-temperature Raman scattering and infrared reflectance spectra investigations",

abstract = "Optical phonons of multiferroic Bi4Ti3O 12-BiFeO3 ceramic have been investigated by low temperature Raman scattering and infrared reflectance spectra. Anomalies at about 85 K can be observed from the temperature dependence of the Raman and infrared modes, which arise from spin-phonon interaction during antiferromagnetic to paramagnetic phase transition. It was found that the change of exchange interaction in magnetic phase transition can be induced by Fe-O-Fe octahedral tilting driven from the A-site atoms. Moreover, ferroelectricity- related displacement of Bismuth atoms suggests the coupling of magnetic and ferroelectric orders.",

author = "Jiang, \{P. P.\} and Zhang, \{X. L.\} and P. Chang and Hu, \{Z. G.\} and W. Bai and Li, \{Y. W.\}",

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language = "英语",

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TY - JOUR

T1 - Spin-phonon interactions of multiferroic Bi4Ti3O 12-BiFeO3 ceramics

T2 - Low-temperature Raman scattering and infrared reflectance spectra investigations

AU - Jiang, P. P.

AU - Zhang, X. L.

AU - Chang, P.

AU - Hu, Z. G.

AU - Bai, W.

AU - Li, Y. W.

PY - 2014/4/14

Y1 - 2014/4/14

N2 - Optical phonons of multiferroic Bi4Ti3O 12-BiFeO3 ceramic have been investigated by low temperature Raman scattering and infrared reflectance spectra. Anomalies at about 85 K can be observed from the temperature dependence of the Raman and infrared modes, which arise from spin-phonon interaction during antiferromagnetic to paramagnetic phase transition. It was found that the change of exchange interaction in magnetic phase transition can be induced by Fe-O-Fe octahedral tilting driven from the A-site atoms. Moreover, ferroelectricity- related displacement of Bismuth atoms suggests the coupling of magnetic and ferroelectric orders.

AB - Optical phonons of multiferroic Bi4Ti3O 12-BiFeO3 ceramic have been investigated by low temperature Raman scattering and infrared reflectance spectra. Anomalies at about 85 K can be observed from the temperature dependence of the Raman and infrared modes, which arise from spin-phonon interaction during antiferromagnetic to paramagnetic phase transition. It was found that the change of exchange interaction in magnetic phase transition can be induced by Fe-O-Fe octahedral tilting driven from the A-site atoms. Moreover, ferroelectricity- related displacement of Bismuth atoms suggests the coupling of magnetic and ferroelectric orders.

UR - https://www.scopus.com/pages/publications/84899031828

U2 - 10.1063/1.4870054

DO - 10.1063/1.4870054

M3 - 文章

AN - SCOPUS:84899031828

SN - 0021-8979

VL - 115

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 14

M1 - 144101

ER -

Spin-phonon interactions of multiferroic Bi₄Ti₃O ₁₂-BiFeO₃ ceramics: Low-temperature Raman scattering and infrared reflectance spectra investigations

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