Giant low-field magnetic refrigeration in EuTi1−xAlxO3 (x = 0.05, 0.1 and 0.15) compounds

Wei Zhang; Zhaojun Mo; Wenhao Jiang; Zhihong Hao; Jiawei Luo; Ruijiang Cheng; Guodong Liu; Lan Li; Jun Shen

doi:10.1016/j.jmmm.2019.165684

Giant low-field magnetic refrigeration in EuTi_1−xAl_xO₃ (x = 0.05, 0.1 and 0.15) compounds

Wei Zhang, Zhaojun Mo^*, Wenhao Jiang, Zhihong Hao, Jiawei Luo, Ruijiang Cheng, Guodong Liu, Lan Li, Jun Shen

^*Corresponding author for this work

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

18 Citations (Scopus)

Abstract

The EuTi_1−xAl_xO₃ (x = 0.05, 0.1 and 0.15) compounds exhibit the ferromagnetic state. A giant reversible MCE of EuTi_1−xAl_xO₃ (x = 0.05, 0.1, 0.15) compounds was observed, which was attributed to the increase of ferromagnetic ordering. With increasing the Al content, the value of −ΔS_M ^max is increased from 11.6 J/kg K to15.6 J/kg K for EuTi_1−xAl_xO₃, and the RC values are 48.4 J/kg for EuTi_0.95Al_0.05O₃, 53.1 J/kg for EuTi_0.9Al_0.1O₃ and 58.2 J/kg for EuTi_0.85Al_0.15O₃ with magnetic field change 0–1 T. Additionally, the maximum value of ΔT_ad is 4.7 K for EuTi_0.85Al_0.15O₃ compound as magnetic field changes 1 T. The EuTi_1−xAl_xO₃ with giant −ΔS_M, large RC and large ΔT_ad suggest an important material for magnetic refrigerant at low-temperature.

Original language	English
Article number	165684
Journal	Journal of Magnetism and Magnetic Materials
Volume	492
DOIs	https://doi.org/10.1016/j.jmmm.2019.165684
Publication status	Published - 15 Dec 2019
Externally published	Yes

Keywords

EuTiAlO
Magnetic entropy change
Magnetocaloric effect
Refrigerant capacity

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10.1016/j.jmmm.2019.165684

Cite this

@article{c66f3d312d454c368b8a7941a579e766,

title = "Giant low-field magnetic refrigeration in EuTi1−xAlxO3 (x = 0.05, 0.1 and 0.15) compounds",

abstract = "The EuTi1−xAlxO3 (x = 0.05, 0.1 and 0.15) compounds exhibit the ferromagnetic state. A giant reversible MCE of EuTi1−xAlxO3 (x = 0.05, 0.1, 0.15) compounds was observed, which was attributed to the increase of ferromagnetic ordering. With increasing the Al content, the value of −ΔSM max is increased from 11.6 J/kg K to15.6 J/kg K for EuTi1−xAlxO3, and the RC values are 48.4 J/kg for EuTi0.95Al0.05O3, 53.1 J/kg for EuTi0.9Al0.1O3 and 58.2 J/kg for EuTi0.85Al0.15O3 with magnetic field change 0–1 T. Additionally, the maximum value of ΔTad is 4.7 K for EuTi0.85Al0.15O3 compound as magnetic field changes 1 T. The EuTi1−xAlxO3 with giant −ΔSM, large RC and large ΔTad suggest an important material for magnetic refrigerant at low-temperature.",

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

author = "Wei Zhang and Zhaojun Mo and Wenhao Jiang and Zhihong Hao and Jiawei Luo and Ruijiang Cheng and Guodong Liu and Lan Li and Jun Shen",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = dec,

day = "15",

doi = "10.1016/j.jmmm.2019.165684",

language = "English",

volume = "492",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Giant low-field magnetic refrigeration in EuTi1−xAlxO3 (x = 0.05, 0.1 and 0.15) compounds

AU - Zhang, Wei

AU - Mo, Zhaojun

AU - Jiang, Wenhao

AU - Hao, Zhihong

AU - Luo, Jiawei

AU - Cheng, Ruijiang

AU - Liu, Guodong

AU - Li, Lan

AU - Shen, Jun

PY - 2019/12/15

Y1 - 2019/12/15

N2 - The EuTi1−xAlxO3 (x = 0.05, 0.1 and 0.15) compounds exhibit the ferromagnetic state. A giant reversible MCE of EuTi1−xAlxO3 (x = 0.05, 0.1, 0.15) compounds was observed, which was attributed to the increase of ferromagnetic ordering. With increasing the Al content, the value of −ΔSM max is increased from 11.6 J/kg K to15.6 J/kg K for EuTi1−xAlxO3, and the RC values are 48.4 J/kg for EuTi0.95Al0.05O3, 53.1 J/kg for EuTi0.9Al0.1O3 and 58.2 J/kg for EuTi0.85Al0.15O3 with magnetic field change 0–1 T. Additionally, the maximum value of ΔTad is 4.7 K for EuTi0.85Al0.15O3 compound as magnetic field changes 1 T. The EuTi1−xAlxO3 with giant −ΔSM, large RC and large ΔTad suggest an important material for magnetic refrigerant at low-temperature.

AB - The EuTi1−xAlxO3 (x = 0.05, 0.1 and 0.15) compounds exhibit the ferromagnetic state. A giant reversible MCE of EuTi1−xAlxO3 (x = 0.05, 0.1, 0.15) compounds was observed, which was attributed to the increase of ferromagnetic ordering. With increasing the Al content, the value of −ΔSM max is increased from 11.6 J/kg K to15.6 J/kg K for EuTi1−xAlxO3, and the RC values are 48.4 J/kg for EuTi0.95Al0.05O3, 53.1 J/kg for EuTi0.9Al0.1O3 and 58.2 J/kg for EuTi0.85Al0.15O3 with magnetic field change 0–1 T. Additionally, the maximum value of ΔTad is 4.7 K for EuTi0.85Al0.15O3 compound as magnetic field changes 1 T. The EuTi1−xAlxO3 with giant −ΔSM, large RC and large ΔTad suggest an important material for magnetic refrigerant at low-temperature.

KW - EuTiAlO

KW - Magnetic entropy change

KW - Magnetocaloric effect

KW - Refrigerant capacity

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U2 - 10.1016/j.jmmm.2019.165684

DO - 10.1016/j.jmmm.2019.165684

M3 - Article

AN - SCOPUS:85070496027

SN - 0304-8853

VL - 492

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

M1 - 165684

ER -

Giant low-field magnetic refrigeration in EuTi_1−xAl_xO₃ (x = 0.05, 0.1 and 0.15) compounds

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Keywords

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Giant low-field magnetic refrigeration in EuTi1−xAlxO3 (x = 0.05, 0.1 and 0.15) compounds

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Keywords

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Giant low-field magnetic refrigeration in EuTi_1−xAl_xO₃ (x = 0.05, 0.1 and 0.15) compounds