Effects of Sr-doping on the giant magnetocaloric effect of EuTiO3

Zhao Jun Mo; Qi Lie Sun; Chang Hong Wang; Hai Zhen Wu; Lan Li; Feng Bin Meng; Cheng Chun Tang; Yun Zhao; Jun Shen

doi:10.1016/j.ceramint.2016.10.184

Effects of Sr-doping on the giant magnetocaloric effect of EuTiO₃

Zhao Jun Mo^*, Qi Lie Sun, Chang Hong Wang, Hai Zhen Wu, Lan Li, Feng Bin Meng, Cheng Chun Tang, Yun Zhao, Jun Shen

^*Corresponding author for this work

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

24 Citations (Scopus)

Abstract

The magnetic properties and magnetocaloric effect of Eu_1−xSr_xTiO₃ (x=0–0.1) compounds are investigated. With slight Sr-doping, the ferromagnetic (FM) coupling significantly increased and FM exchange is dominant in the delicate balance. A giant reversible magnetocaloric effect (MCE) and large refrigerant capacity (RC) for Eu_1−xSr_xTiO₃ compounds were observed. The values of −ΔS_M^max are evaluated to be around 10 J/kg K under a magnetic field change of 1 T and 21 J/kg K under a magnetic field change of 2 T, respectively. But, the values of RC are increased with the more Eu in EuTiO₃ to be substituted by Sr. Therefore, the giant reversible MCE and large RC make the Eu_1−xSr_xTiO₃ compound a good candidate for magnetic refrigerant working at low-temperature and low-field.

Original language	English
Pages (from-to)	2083-2088
Number of pages	6
Journal	Ceramics International
Volume	43
Issue number	2
DOIs	https://doi.org/10.1016/j.ceramint.2016.10.184
Publication status	Published - 1 Feb 2017
Externally published	Yes

Keywords

Magnetic entropy change
Magnetocaloric effect
Refrigerant capacity

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10.1016/j.ceramint.2016.10.184

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title = "Effects of Sr-doping on the giant magnetocaloric effect of EuTiO3",

abstract = "The magnetic properties and magnetocaloric effect of Eu1−xSrxTiO3 (x=0–0.1) compounds are investigated. With slight Sr-doping, the ferromagnetic (FM) coupling significantly increased and FM exchange is dominant in the delicate balance. A giant reversible magnetocaloric effect (MCE) and large refrigerant capacity (RC) for Eu1−xSrxTiO3 compounds were observed. The values of −ΔSMmax are evaluated to be around 10 J/kg K under a magnetic field change of 1 T and 21 J/kg K under a magnetic field change of 2 T, respectively. But, the values of RC are increased with the more Eu in EuTiO3 to be substituted by Sr. Therefore, the giant reversible MCE and large RC make the Eu1−xSrxTiO3 compound a good candidate for magnetic refrigerant working at low-temperature and low-field.",

keywords = "Magnetic entropy change, Magnetocaloric effect, Refrigerant capacity",

author = "Mo, {Zhao Jun} and Sun, {Qi Lie} and Wang, {Chang Hong} and Wu, {Hai Zhen} and Lan Li and Meng, {Feng Bin} and Tang, {Cheng Chun} and Yun Zhao and Jun Shen",

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doi = "10.1016/j.ceramint.2016.10.184",

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AU - Mo, Zhao Jun

AU - Sun, Qi Lie

AU - Wang, Chang Hong

AU - Wu, Hai Zhen

AU - Li, Lan

AU - Meng, Feng Bin

AU - Tang, Cheng Chun

AU - Zhao, Yun

AU - Shen, Jun

PY - 2017/2/1

Y1 - 2017/2/1

N2 - The magnetic properties and magnetocaloric effect of Eu1−xSrxTiO3 (x=0–0.1) compounds are investigated. With slight Sr-doping, the ferromagnetic (FM) coupling significantly increased and FM exchange is dominant in the delicate balance. A giant reversible magnetocaloric effect (MCE) and large refrigerant capacity (RC) for Eu1−xSrxTiO3 compounds were observed. The values of −ΔSMmax are evaluated to be around 10 J/kg K under a magnetic field change of 1 T and 21 J/kg K under a magnetic field change of 2 T, respectively. But, the values of RC are increased with the more Eu in EuTiO3 to be substituted by Sr. Therefore, the giant reversible MCE and large RC make the Eu1−xSrxTiO3 compound a good candidate for magnetic refrigerant working at low-temperature and low-field.

AB - The magnetic properties and magnetocaloric effect of Eu1−xSrxTiO3 (x=0–0.1) compounds are investigated. With slight Sr-doping, the ferromagnetic (FM) coupling significantly increased and FM exchange is dominant in the delicate balance. A giant reversible magnetocaloric effect (MCE) and large refrigerant capacity (RC) for Eu1−xSrxTiO3 compounds were observed. The values of −ΔSMmax are evaluated to be around 10 J/kg K under a magnetic field change of 1 T and 21 J/kg K under a magnetic field change of 2 T, respectively. But, the values of RC are increased with the more Eu in EuTiO3 to be substituted by Sr. Therefore, the giant reversible MCE and large RC make the Eu1−xSrxTiO3 compound a good candidate for magnetic refrigerant working at low-temperature and low-field.

KW - Magnetic entropy change

KW - Magnetocaloric effect

KW - Refrigerant capacity

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SN - 0272-8842

VL - 43

SP - 2083

EP - 2088

JO - Ceramics International

JF - Ceramics International

IS - 2

ER -

Effects of Sr-doping on the giant magnetocaloric effect of EuTiO₃

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Keywords

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