Strain-induced broadening temperature range of electrocaloric effects in ferroelectric superlattices

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

doi:10.1016/j.jallcom.2018.10.397

Strain-induced broadening temperature range of electrocaloric effects in ferroelectric superlattices

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

^*此作品的通讯作者

前沿交叉科学研究院

科研成果: 期刊稿件 › 文章 › 同行评审

13 引用（Scopus）

摘要

Motivated by a broad temperature span, we performed a strain-induced broadening temperature range of electrocaloric effects in PbZr_0.6Ti_0.4O₃/PbTiO₃ ferroelectric superlattices based on phenomenological Landau-Devonshire thermodynamic theory. The results indicated that interlayer misfit strain and substrate misfit strain in superlattices modulate the Curie temperature. Considering two types of strains coexist in ferroelectric superlattices, there exist a balance between interlayer misfit strain and substrate misfit strain to broaden temperature range (281 K) of electrocaloric effects. The present study therefore contributes to the understanding of strain effects of electrocaloric cooling and provides guidance towards experimental design of high efficiency cooling devices.

源语言	英语
页（从-至）	821-827
页数	7
期刊	Journal of Alloys and Compounds
卷	777
DOI	https://doi.org/10.1016/j.jallcom.2018.10.397
出版状态	已出版 - 10 3月 2019

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title = "Strain-induced broadening temperature range of electrocaloric effects in ferroelectric superlattices",

abstract = "Motivated by a broad temperature span, we performed a strain-induced broadening temperature range of electrocaloric effects in PbZr0.6Ti0.4O3/PbTiO3 ferroelectric superlattices based on phenomenological Landau-Devonshire thermodynamic theory. The results indicated that interlayer misfit strain and substrate misfit strain in superlattices modulate the Curie temperature. Considering two types of strains coexist in ferroelectric superlattices, there exist a balance between interlayer misfit strain and substrate misfit strain to broaden temperature range (281 K) of electrocaloric effects. The present study therefore contributes to the understanding of strain effects of electrocaloric cooling and provides guidance towards experimental design of high efficiency cooling devices.",

keywords = "Electrocaloric effect, Ferroelectric superlattices, Strain-broadening temperature range, Thermodynamic calculation",

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

note = "Publisher Copyright: {\textcopyright} 2018",

year = "2019",

month = mar,

day = "10",

doi = "10.1016/j.jallcom.2018.10.397",

language = "English",

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TY - JOUR

T1 - Strain-induced broadening temperature range of electrocaloric effects in ferroelectric superlattices

AU - Sun, Xiaohui

AU - Huang, Houbing

AU - Wang, Junsheng

AU - Wen, Yongqiang

AU - Dang, Zhi Min

PY - 2019/3/10

Y1 - 2019/3/10

N2 - Motivated by a broad temperature span, we performed a strain-induced broadening temperature range of electrocaloric effects in PbZr0.6Ti0.4O3/PbTiO3 ferroelectric superlattices based on phenomenological Landau-Devonshire thermodynamic theory. The results indicated that interlayer misfit strain and substrate misfit strain in superlattices modulate the Curie temperature. Considering two types of strains coexist in ferroelectric superlattices, there exist a balance between interlayer misfit strain and substrate misfit strain to broaden temperature range (281 K) of electrocaloric effects. The present study therefore contributes to the understanding of strain effects of electrocaloric cooling and provides guidance towards experimental design of high efficiency cooling devices.

AB - Motivated by a broad temperature span, we performed a strain-induced broadening temperature range of electrocaloric effects in PbZr0.6Ti0.4O3/PbTiO3 ferroelectric superlattices based on phenomenological Landau-Devonshire thermodynamic theory. The results indicated that interlayer misfit strain and substrate misfit strain in superlattices modulate the Curie temperature. Considering two types of strains coexist in ferroelectric superlattices, there exist a balance between interlayer misfit strain and substrate misfit strain to broaden temperature range (281 K) of electrocaloric effects. The present study therefore contributes to the understanding of strain effects of electrocaloric cooling and provides guidance towards experimental design of high efficiency cooling devices.

KW - Electrocaloric effect

KW - Ferroelectric superlattices

KW - Strain-broadening temperature range

KW - Thermodynamic calculation

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U2 - 10.1016/j.jallcom.2018.10.397

DO - 10.1016/j.jallcom.2018.10.397

M3 - Article

AN - SCOPUS:85056219092

SN - 0925-8388

VL - 777

SP - 821

EP - 827

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Strain-induced broadening temperature range of electrocaloric effects in ferroelectric superlattices

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