Large Magnetocaloric Effect and Magnetic Properties in ErCoAl

Dexin Li; Yoshiya Homma; Fuminori Honda; Tomoo Yamamura; Dai Aoki

doi:10.1016/j.phpro.2015.12.145

Large Magnetocaloric Effect and Magnetic Properties in ErCoAl

Dexin Li, Yoshiya Homma, Fuminori Honda, Tomoo Yamamura, Dai Aoki

Research output: Contribution to journal › Conference article

2 Citations (Scopus)

Abstract

Magnetic properties and magnetocaloric effects of the intermetallic compound ErCoAl, crystallizing in the hexagonal MgZn₂-type structure, have been investigated. This compound shows second-order ferromagnetic transition with Curie temperature T_C=16 K. Around T_C, the maximum entropy change and relative cooling power are estimated to be 11.0, 15.5 and 18.5 Jkg^-1K^-1 and 151, 284, and 433 Jkg^-1 for a field change of 30, 50, and 70 kOe, respectively. These experimental results suggest that ErCoAl could be an appropriate candidate for magnetic refrigerant working at the temperatures near 20 K.

Original language	English
Pages (from-to)	1300-1305
Number of pages	6
Journal	Physics Procedia
Volume	75
DOIs	https://doi.org/10.1016/j.phpro.2015.12.145
Publication status	Published - 2015 Jan 1
Event	20th International Conference on Magnetism, ICM 2015 - Barcelona, Spain Duration: 2015 Jul 5 → 2015 Jul 10

Keywords

ErCoAl
Magnetization
Magnetocaloric effect
Specific heat

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1016/j.phpro.2015.12.145

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Li, D., Homma, Y., Honda, F., Yamamura, T., & Aoki, D. (2015). Large Magnetocaloric Effect and Magnetic Properties in ErCoAl. Physics Procedia, 75, 1300-1305. https://doi.org/10.1016/j.phpro.2015.12.145

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title = "Large Magnetocaloric Effect and Magnetic Properties in ErCoAl",

abstract = "Magnetic properties and magnetocaloric effects of the intermetallic compound ErCoAl, crystallizing in the hexagonal MgZn2-type structure, have been investigated. This compound shows second-order ferromagnetic transition with Curie temperature TC=16 K. Around TC, the maximum entropy change and relative cooling power are estimated to be 11.0, 15.5 and 18.5 Jkg-1K-1 and 151, 284, and 433 Jkg-1 for a field change of 30, 50, and 70 kOe, respectively. These experimental results suggest that ErCoAl could be an appropriate candidate for magnetic refrigerant working at the temperatures near 20 K.",

keywords = "ErCoAl, Magnetization, Magnetocaloric effect, Specific heat",

author = "Dexin Li and Yoshiya Homma and Fuminori Honda and Tomoo Yamamura and Dai Aoki",

year = "2015",

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doi = "10.1016/j.phpro.2015.12.145",

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pages = "1300--1305",

journal = "Physics Procedia",

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T1 - Large Magnetocaloric Effect and Magnetic Properties in ErCoAl

AU - Li, Dexin

AU - Homma, Yoshiya

AU - Honda, Fuminori

AU - Yamamura, Tomoo

AU - Aoki, Dai

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Magnetic properties and magnetocaloric effects of the intermetallic compound ErCoAl, crystallizing in the hexagonal MgZn2-type structure, have been investigated. This compound shows second-order ferromagnetic transition with Curie temperature TC=16 K. Around TC, the maximum entropy change and relative cooling power are estimated to be 11.0, 15.5 and 18.5 Jkg-1K-1 and 151, 284, and 433 Jkg-1 for a field change of 30, 50, and 70 kOe, respectively. These experimental results suggest that ErCoAl could be an appropriate candidate for magnetic refrigerant working at the temperatures near 20 K.

AB - Magnetic properties and magnetocaloric effects of the intermetallic compound ErCoAl, crystallizing in the hexagonal MgZn2-type structure, have been investigated. This compound shows second-order ferromagnetic transition with Curie temperature TC=16 K. Around TC, the maximum entropy change and relative cooling power are estimated to be 11.0, 15.5 and 18.5 Jkg-1K-1 and 151, 284, and 433 Jkg-1 for a field change of 30, 50, and 70 kOe, respectively. These experimental results suggest that ErCoAl could be an appropriate candidate for magnetic refrigerant working at the temperatures near 20 K.

KW - ErCoAl

KW - Magnetization

KW - Magnetocaloric effect

KW - Specific heat

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