Wide electrocaloric temperature range induced by ferroelectric to antiferroelectric phase transition

Xiaohui Sun; Houbing Huang; Hasnain Mehdi Jafri; Junsheng Wang; Yongqiang Wen; Zhi Min Dang

doi:10.3390/app9081672

Wide electrocaloric temperature range induced by ferroelectric to antiferroelectric phase transition

Xiaohui Sun, Houbing Huang^*, Hasnain Mehdi Jafri, Junsheng Wang, Yongqiang Wen, Zhi Min Dang

^*Corresponding author for this work

Advanced Research Institute of Multidisciplinary Science

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

10 Citations (Scopus)

Abstract

The ferroelectric (FE) to antiferroelectric (AFE) phase transition tuning the temperature range of electrocaloric (EC) effects was investigated using phenomenological Landau-Devonshire theory. Contrary to ferroelectric to paraelectric (PE) phase transitions for electrocaloric effects, the ferroelectric to antiferroelectric phase transition was adopted to obtain large entropy changes under an applied electric field in a Sm-doping BiFeO₃ system. In addition, the doping composition and hydrostatic pressure was observed to tune the ferroelectricantiferroelectric-paraelectric phase transition temperatures and broaden the operating temperature range of electrocaloric effects. The optimal wide temperature range of ~78 K was observed at 3 GPa compressive hydrostatic pressures and 0.05 Sm-doping BiFeO₃. The present study paves the way to designing high efficiency cooling devices with larger operating temperature spans.

Original language	English
Article number	1672
Journal	Applied Sciences (Switzerland)
Volume	9
Issue number	8
DOIs	https://doi.org/10.3390/app9081672
Publication status	Published - 1 Apr 2019

Keywords

Electrocaloric effect
Ferroelectric-antiferroelectric phase transition
Thermodynamic calculation
Wide temperature range

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10.3390/app9081672

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title = "Wide electrocaloric temperature range induced by ferroelectric to antiferroelectric phase transition",

abstract = "The ferroelectric (FE) to antiferroelectric (AFE) phase transition tuning the temperature range of electrocaloric (EC) effects was investigated using phenomenological Landau-Devonshire theory. Contrary to ferroelectric to paraelectric (PE) phase transitions for electrocaloric effects, the ferroelectric to antiferroelectric phase transition was adopted to obtain large entropy changes under an applied electric field in a Sm-doping BiFeO3 system. In addition, the doping composition and hydrostatic pressure was observed to tune the ferroelectricantiferroelectric-paraelectric phase transition temperatures and broaden the operating temperature range of electrocaloric effects. The optimal wide temperature range of ~78 K was observed at 3 GPa compressive hydrostatic pressures and 0.05 Sm-doping BiFeO3. The present study paves the way to designing high efficiency cooling devices with larger operating temperature spans.",

keywords = "Electrocaloric effect, Ferroelectric-antiferroelectric phase transition, Thermodynamic calculation, Wide temperature range",

author = "Xiaohui Sun and Houbing Huang and Jafri, {Hasnain Mehdi} and Junsheng Wang and Yongqiang Wen and Dang, {Zhi Min}",

note = "Publisher Copyright: {\textcopyright} 2019 by the authors.",

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doi = "10.3390/app9081672",

language = "English",

volume = "9",

journal = "Applied Sciences (Switzerland)",

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TY - JOUR

T1 - Wide electrocaloric temperature range induced by ferroelectric to antiferroelectric phase transition

AU - Sun, Xiaohui

AU - Huang, Houbing

AU - Jafri, Hasnain Mehdi

AU - Wang, Junsheng

AU - Wen, Yongqiang

AU - Dang, Zhi Min

PY - 2019/4/1

Y1 - 2019/4/1

N2 - The ferroelectric (FE) to antiferroelectric (AFE) phase transition tuning the temperature range of electrocaloric (EC) effects was investigated using phenomenological Landau-Devonshire theory. Contrary to ferroelectric to paraelectric (PE) phase transitions for electrocaloric effects, the ferroelectric to antiferroelectric phase transition was adopted to obtain large entropy changes under an applied electric field in a Sm-doping BiFeO3 system. In addition, the doping composition and hydrostatic pressure was observed to tune the ferroelectricantiferroelectric-paraelectric phase transition temperatures and broaden the operating temperature range of electrocaloric effects. The optimal wide temperature range of ~78 K was observed at 3 GPa compressive hydrostatic pressures and 0.05 Sm-doping BiFeO3. The present study paves the way to designing high efficiency cooling devices with larger operating temperature spans.

AB - The ferroelectric (FE) to antiferroelectric (AFE) phase transition tuning the temperature range of electrocaloric (EC) effects was investigated using phenomenological Landau-Devonshire theory. Contrary to ferroelectric to paraelectric (PE) phase transitions for electrocaloric effects, the ferroelectric to antiferroelectric phase transition was adopted to obtain large entropy changes under an applied electric field in a Sm-doping BiFeO3 system. In addition, the doping composition and hydrostatic pressure was observed to tune the ferroelectricantiferroelectric-paraelectric phase transition temperatures and broaden the operating temperature range of electrocaloric effects. The optimal wide temperature range of ~78 K was observed at 3 GPa compressive hydrostatic pressures and 0.05 Sm-doping BiFeO3. The present study paves the way to designing high efficiency cooling devices with larger operating temperature spans.

KW - Electrocaloric effect

KW - Ferroelectric-antiferroelectric phase transition

KW - Thermodynamic calculation

KW - Wide temperature range

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U2 - 10.3390/app9081672

DO - 10.3390/app9081672

M3 - Article

AN - SCOPUS:85067131849

SN - 2076-3417

VL - 9

JO - Applied Sciences (Switzerland)

JF - Applied Sciences (Switzerland)

IS - 8

M1 - 1672

ER -

Wide electrocaloric temperature range induced by ferroelectric to antiferroelectric phase transition

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Keywords

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