Magnetic entropy change and large refrigerant capacity of Ce 6Ni2Si3-type GdCoSiGe compound

Jun Shen; Hu Zhang; Jian Feng Wu

doi:10.1088/1674-1056/20/2/027501

Magnetic entropy change and large refrigerant capacity of Ce ₆Ni₂Si₃-type GdCoSiGe compound

Jun Shen^*, Hu Zhang, Jian Feng Wu

^*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

Magnetic entropy change (ΔS_M) and refrigerant capacity (RC) of Ce₆Ni₂Si₃-type Gd₆Co _1.67Si_2.5Ge_0.5 compounds have been investigated. The Gd₆Co_1.67Si_2.5Ge _0.5 undergoes a reversible second-order phase transition at the Curie temperature T_C = 296 K. The high saturation magnetization leads to a large ΔS_M and the maximal value of ΔS_M is found to be 5.9 J/kg K around T_C for a field change of 0-5 T. A broad distribution of the ΔS_M peak is observed and the full width at half maximum of the ΔS_M peak is about 101 K under a magnetic field of 5 T. The large RC is found around T_C and its value is 424 J/kg.

Original language	English
Article number	027501
Journal	Chinese Physics B
Volume	20
Issue number	2
DOIs	https://doi.org/10.1088/1674-1056/20/2/027501
Publication status	Published - Feb 2011
Externally published	Yes

Keywords

GdCoSiGe compound
magnetocaloric effect
refrigerant capacity

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10.1088/1674-1056/20/2/027501

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title = "Magnetic entropy change and large refrigerant capacity of Ce 6Ni2Si3-type GdCoSiGe compound",

abstract = "Magnetic entropy change (ΔSM) and refrigerant capacity (RC) of Ce6Ni2Si3-type Gd6Co 1.67Si2.5Ge0.5 compounds have been investigated. The Gd6Co1.67Si2.5Ge 0.5 undergoes a reversible second-order phase transition at the Curie temperature TC = 296 K. The high saturation magnetization leads to a large ΔSM and the maximal value of ΔSM is found to be 5.9 J/kg K around TC for a field change of 0-5 T. A broad distribution of the ΔSM peak is observed and the full width at half maximum of the ΔSM peak is about 101 K under a magnetic field of 5 T. The large RC is found around TC and its value is 424 J/kg.",

keywords = "GdCoSiGe compound, magnetocaloric effect, refrigerant capacity",

author = "Jun Shen and Hu Zhang and Wu, {Jian Feng}",

year = "2011",

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doi = "10.1088/1674-1056/20/2/027501",

language = "English",

volume = "20",

journal = "Chinese Physics B",

issn = "1674-1056",

publisher = "IOP Publishing Ltd.",

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TY - JOUR

T1 - Magnetic entropy change and large refrigerant capacity of Ce 6Ni2Si3-type GdCoSiGe compound

AU - Shen, Jun

AU - Zhang, Hu

AU - Wu, Jian Feng

PY - 2011/2

Y1 - 2011/2

N2 - Magnetic entropy change (ΔSM) and refrigerant capacity (RC) of Ce6Ni2Si3-type Gd6Co 1.67Si2.5Ge0.5 compounds have been investigated. The Gd6Co1.67Si2.5Ge 0.5 undergoes a reversible second-order phase transition at the Curie temperature TC = 296 K. The high saturation magnetization leads to a large ΔSM and the maximal value of ΔSM is found to be 5.9 J/kg K around TC for a field change of 0-5 T. A broad distribution of the ΔSM peak is observed and the full width at half maximum of the ΔSM peak is about 101 K under a magnetic field of 5 T. The large RC is found around TC and its value is 424 J/kg.

AB - Magnetic entropy change (ΔSM) and refrigerant capacity (RC) of Ce6Ni2Si3-type Gd6Co 1.67Si2.5Ge0.5 compounds have been investigated. The Gd6Co1.67Si2.5Ge 0.5 undergoes a reversible second-order phase transition at the Curie temperature TC = 296 K. The high saturation magnetization leads to a large ΔSM and the maximal value of ΔSM is found to be 5.9 J/kg K around TC for a field change of 0-5 T. A broad distribution of the ΔSM peak is observed and the full width at half maximum of the ΔSM peak is about 101 K under a magnetic field of 5 T. The large RC is found around TC and its value is 424 J/kg.

KW - GdCoSiGe compound

KW - magnetocaloric effect

KW - refrigerant capacity

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U2 - 10.1088/1674-1056/20/2/027501

DO - 10.1088/1674-1056/20/2/027501

M3 - Article

AN - SCOPUS:79952468436

SN - 1674-1056

VL - 20

JO - Chinese Physics B

JF - Chinese Physics B

IS - 2

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ER -

Magnetic entropy change and large refrigerant capacity of Ce ₆Ni₂Si₃-type GdCoSiGe compound

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