Magnetocaloric effect in Gd6Co1.67Si3 compound with a second-order phase transition

Jun Shen; Yang Xian Li; Qiao Yan Dong; Fang Wang; Ji Rong Sun

doi:10.1088/1674-1056/17/6/055

Magnetocaloric effect in Gd₆Co_1.67Si₃ compound with a second-order phase transition

Jun Shen
, Yang Xian Li^*
, Qiao Yan Dong
, Fang Wang
, Ji Rong Sun

^*Corresponding author for this work

Hebei University of Technology
CAS - Institute of Physics

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

18 Citations (Scopus)

Abstract

The magnetic properties and the magnetic entropy change ΔS have been investigated for Gd₆Co_1.67Si₃ compounds with a second-order phase transition. The saturation moment at 5 K and the Curie temperature T_C are 38.1 μ_B and 298 K, respectively. The ΔS originates from a reversible second-order magnetic transition around T_C and its value reaches 5.2J/kgK for a magnetic field change from 0 to 5T. The refrigerant capacity (RC) of Gd₆Co_1.67Si ₃ are calculated by using the methods given in Refs.[12] and [21], respectively, for a field change of 0-5T and its values are 310 and 440 J/kg, which is larger than those of some magnetocaloric materials with a first-order phase transition.

Original language	English
Pages (from-to)	2268-2271
Number of pages	4
Journal	Chinese Physics B
Volume	17
Issue number	6
DOIs	https://doi.org/10.1088/1674-1056/17/6/055
Publication status	Published - 1 Jun 2008
Externally published	Yes

Keywords

GdCoSi compound
Magnetic entropy change
Magnetic properties

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10.1088/1674-1056/17/6/055

Cite this

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title = "Magnetocaloric effect in Gd6Co1.67Si3 compound with a second-order phase transition",

abstract = "The magnetic properties and the magnetic entropy change ΔS have been investigated for Gd6Co1.67Si3 compounds with a second-order phase transition. The saturation moment at 5 K and the Curie temperature TC are 38.1 μB and 298 K, respectively. The ΔS originates from a reversible second-order magnetic transition around TC and its value reaches 5.2J/kgK for a magnetic field change from 0 to 5T. The refrigerant capacity (RC) of Gd6Co1.67Si 3 are calculated by using the methods given in Refs.[12] and [21], respectively, for a field change of 0-5T and its values are 310 and 440 J/kg, which is larger than those of some magnetocaloric materials with a first-order phase transition.",

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author = "Jun Shen and Li, \{Yang Xian\} and Dong, \{Qiao Yan\} and Fang Wang and Sun, \{Ji Rong\}",

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doi = "10.1088/1674-1056/17/6/055",

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TY - JOUR

T1 - Magnetocaloric effect in Gd6Co1.67Si3 compound with a second-order phase transition

AU - Shen, Jun

AU - Li, Yang Xian

AU - Dong, Qiao Yan

AU - Wang, Fang

AU - Sun, Ji Rong

PY - 2008/6/1

Y1 - 2008/6/1

N2 - The magnetic properties and the magnetic entropy change ΔS have been investigated for Gd6Co1.67Si3 compounds with a second-order phase transition. The saturation moment at 5 K and the Curie temperature TC are 38.1 μB and 298 K, respectively. The ΔS originates from a reversible second-order magnetic transition around TC and its value reaches 5.2J/kgK for a magnetic field change from 0 to 5T. The refrigerant capacity (RC) of Gd6Co1.67Si 3 are calculated by using the methods given in Refs.[12] and [21], respectively, for a field change of 0-5T and its values are 310 and 440 J/kg, which is larger than those of some magnetocaloric materials with a first-order phase transition.

AB - The magnetic properties and the magnetic entropy change ΔS have been investigated for Gd6Co1.67Si3 compounds with a second-order phase transition. The saturation moment at 5 K and the Curie temperature TC are 38.1 μB and 298 K, respectively. The ΔS originates from a reversible second-order magnetic transition around TC and its value reaches 5.2J/kgK for a magnetic field change from 0 to 5T. The refrigerant capacity (RC) of Gd6Co1.67Si 3 are calculated by using the methods given in Refs.[12] and [21], respectively, for a field change of 0-5T and its values are 310 and 440 J/kg, which is larger than those of some magnetocaloric materials with a first-order phase transition.

KW - GdCoSi compound

KW - Magnetic entropy change

KW - Magnetic properties

UR - https://www.scopus.com/pages/publications/46749142036

U2 - 10.1088/1674-1056/17/6/055

DO - 10.1088/1674-1056/17/6/055

M3 - Article

AN - SCOPUS:46749142036

SN - 1674-1056

VL - 17

SP - 2268

EP - 2271

JO - Chinese Physics B

JF - Chinese Physics B

IS - 6

ER -

Magnetocaloric effect in Gd₆Co_1.67Si₃ compound with a second-order phase transition

Abstract

Keywords

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