Pressure effect on structural and vibrational properties of Sm-substituted BiFeO3

Yu Jie Wu; Xiao Kun Chen; Jing Zhang; Jing Liu; Wan Sheng Xiao; Zhigang Wu; Xiao Jia Chen

doi:10.1063/1.4826069

Pressure effect on structural and vibrational properties of Sm-substituted BiFeO₃

Yu Jie Wu
, Xiao Kun Chen
, Jing Zhang
, Jing Liu
, Wan Sheng Xiao
, Zhigang Wu
, Xiao Jia Chen^*

^*Corresponding author for this work

South China University of Technology
Guangzhou University
CAS - Institute of High Energy Physics
CAS - Guangzhou Institute of Geochemistry
Colorado School of Mines
Center for High Pressure Science & Technology Advanced Research

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

15 Scopus citations

Abstract

The structural and vibrational properties of 5% Sm-substituted BiFeO ₃ under pressure are investigated using synchrotron X-ray diffraction and Raman scattering measurements. The results yield the pressure-induced structural phase transitions from the polar R3c phase to the orthorhombic Pnma phase commencing at 3.9 and being complete at 7.6 GPa, where there is a region of the coexistence of the R3c and Pnma phases. This structural transition is companied by the ferroelectric-paraelectric transition for the Sm-substituted BiFeO₃. We find that the Sm substitution leads to lower transition pressure compared to that of the pure BiFeO₃ system due to the substitution-induced chemical pressure. Our results do not suggest the pressure-induced reentrance of ferroelectricity in the model multiferroic BiFeO₃ in the pressure range studied.

Original language	English
Article number	154110
Journal	Journal of Applied Physics
Volume	114
Issue number	15
DOIs	https://doi.org/10.1063/1.4826069
State	Published - 21 Oct 2013
Externally published	Yes

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title = "Pressure effect on structural and vibrational properties of Sm-substituted BiFeO3",

abstract = "The structural and vibrational properties of 5\% Sm-substituted BiFeO 3 under pressure are investigated using synchrotron X-ray diffraction and Raman scattering measurements. The results yield the pressure-induced structural phase transitions from the polar R3c phase to the orthorhombic Pnma phase commencing at 3.9 and being complete at 7.6 GPa, where there is a region of the coexistence of the R3c and Pnma phases. This structural transition is companied by the ferroelectric-paraelectric transition for the Sm-substituted BiFeO3. We find that the Sm substitution leads to lower transition pressure compared to that of the pure BiFeO3 system due to the substitution-induced chemical pressure. Our results do not suggest the pressure-induced reentrance of ferroelectricity in the model multiferroic BiFeO3 in the pressure range studied.",

author = "Wu, \{Yu Jie\} and Chen, \{Xiao Kun\} and Jing Zhang and Jing Liu and Xiao, \{Wan Sheng\} and Zhigang Wu and Chen, \{Xiao Jia\}",

year = "2013",

month = oct,

day = "21",

doi = "10.1063/1.4826069",

language = "英语",

volume = "114",

journal = "Journal of Applied Physics",

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TY - JOUR

T1 - Pressure effect on structural and vibrational properties of Sm-substituted BiFeO3

AU - Wu, Yu Jie

AU - Chen, Xiao Kun

AU - Zhang, Jing

AU - Liu, Jing

AU - Xiao, Wan Sheng

AU - Wu, Zhigang

AU - Chen, Xiao Jia

PY - 2013/10/21

Y1 - 2013/10/21

N2 - The structural and vibrational properties of 5% Sm-substituted BiFeO 3 under pressure are investigated using synchrotron X-ray diffraction and Raman scattering measurements. The results yield the pressure-induced structural phase transitions from the polar R3c phase to the orthorhombic Pnma phase commencing at 3.9 and being complete at 7.6 GPa, where there is a region of the coexistence of the R3c and Pnma phases. This structural transition is companied by the ferroelectric-paraelectric transition for the Sm-substituted BiFeO3. We find that the Sm substitution leads to lower transition pressure compared to that of the pure BiFeO3 system due to the substitution-induced chemical pressure. Our results do not suggest the pressure-induced reentrance of ferroelectricity in the model multiferroic BiFeO3 in the pressure range studied.

AB - The structural and vibrational properties of 5% Sm-substituted BiFeO 3 under pressure are investigated using synchrotron X-ray diffraction and Raman scattering measurements. The results yield the pressure-induced structural phase transitions from the polar R3c phase to the orthorhombic Pnma phase commencing at 3.9 and being complete at 7.6 GPa, where there is a region of the coexistence of the R3c and Pnma phases. This structural transition is companied by the ferroelectric-paraelectric transition for the Sm-substituted BiFeO3. We find that the Sm substitution leads to lower transition pressure compared to that of the pure BiFeO3 system due to the substitution-induced chemical pressure. Our results do not suggest the pressure-induced reentrance of ferroelectricity in the model multiferroic BiFeO3 in the pressure range studied.

UR - https://www.scopus.com/pages/publications/84886490733

U2 - 10.1063/1.4826069

DO - 10.1063/1.4826069

M3 - 文章

AN - SCOPUS:84886490733

SN - 0021-8979

VL - 114

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 15

M1 - 154110

ER -

Pressure effect on structural and vibrational properties of Sm-substituted BiFeO₃

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