Magnetic properties and magnetocaloric effects in (GDxDy1-x)CO2 compounds

Dunhui Wang; Haidong Liu; Shaolong Tang; Sen Yang; Songling Huang; Youwei Du

doi:10.1016/S0375-9601(02)00159-7

Magnetic properties and magnetocaloric effects in (GD_xDy_1-x)CO₂ compounds

Dunhui Wang
, Haidong Liu
, Shaolong Tang
, Sen Yang
, Songling Huang
, Youwei Du

Nanjing University

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

44 Scopus citations

Abstract

A series of (Gd_xDy_1-x)Co₂ (x = 0, 0.05, 0.1, 0.2, 0.3, 0.4 and 0.55) compounds have been prepared by arc-melting method. The X-ray diffraction (XRD) analysis reveals that all samples are in the MgCu₂-type structure. The magnetization was measured by a vibrating sample magnetometer (VSM). No first-order phase transition in these compounds (x ≠ 0) is observed. With the increasing Gd content, Curie temperature (T_C) increases almost linearly. The magnetic entropy changes (|ΔS_M|) as a function of the temperature in magnetic field (1 T) for (Gd_xDy_1-x)Co₂ have been calculated. The origin of the magnetocaloric effect and the potential application of (Gd_xDY_1-x)Co₂ as a working material for magnetic refrigerants have also been discussed.

Original language	English
Pages (from-to)	247-252
Number of pages	6
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	297
Issue number	3-4
DOIs	https://doi.org/10.1016/S0375-9601(02)00159-7
State	Published - 13 May 2002
Externally published	Yes

Keywords

(Gd Dy)Co compounds
First-order phase transition
Magnetic entropy changes
Magnetocaloric effects
Second-order phase transition

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10.1016/S0375-9601(02)00159-7

Cite this

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title = "Magnetic properties and magnetocaloric effects in (GDxDy1-x)CO2 compounds",

abstract = "A series of (GdxDy1-x)Co2 (x = 0, 0.05, 0.1, 0.2, 0.3, 0.4 and 0.55) compounds have been prepared by arc-melting method. The X-ray diffraction (XRD) analysis reveals that all samples are in the MgCu2-type structure. The magnetization was measured by a vibrating sample magnetometer (VSM). No first-order phase transition in these compounds (x ≠ 0) is observed. With the increasing Gd content, Curie temperature (TC) increases almost linearly. The magnetic entropy changes (|ΔSM|) as a function of the temperature in magnetic field (1 T) for (GdxDy1-x)Co2 have been calculated. The origin of the magnetocaloric effect and the potential application of (GdxDY1-x)Co2 as a working material for magnetic refrigerants have also been discussed.",

keywords = "(Gd Dy)Co compounds, First-order phase transition, Magnetic entropy changes, Magnetocaloric effects, Second-order phase transition",

author = "Dunhui Wang and Haidong Liu and Shaolong Tang and Sen Yang and Songling Huang and Youwei Du",

year = "2002",

month = may,

day = "13",

doi = "10.1016/S0375-9601(02)00159-7",

language = "英语",

volume = "297",

pages = "247--252",

journal = "Physics Letters, Section A: General, Atomic and Solid State Physics",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Magnetic properties and magnetocaloric effects in (GDxDy1-x)CO2 compounds

AU - Wang, Dunhui

AU - Liu, Haidong

AU - Tang, Shaolong

AU - Yang, Sen

AU - Huang, Songling

AU - Du, Youwei

PY - 2002/5/13

Y1 - 2002/5/13

N2 - A series of (GdxDy1-x)Co2 (x = 0, 0.05, 0.1, 0.2, 0.3, 0.4 and 0.55) compounds have been prepared by arc-melting method. The X-ray diffraction (XRD) analysis reveals that all samples are in the MgCu2-type structure. The magnetization was measured by a vibrating sample magnetometer (VSM). No first-order phase transition in these compounds (x ≠ 0) is observed. With the increasing Gd content, Curie temperature (TC) increases almost linearly. The magnetic entropy changes (|ΔSM|) as a function of the temperature in magnetic field (1 T) for (GdxDy1-x)Co2 have been calculated. The origin of the magnetocaloric effect and the potential application of (GdxDY1-x)Co2 as a working material for magnetic refrigerants have also been discussed.

AB - A series of (GdxDy1-x)Co2 (x = 0, 0.05, 0.1, 0.2, 0.3, 0.4 and 0.55) compounds have been prepared by arc-melting method. The X-ray diffraction (XRD) analysis reveals that all samples are in the MgCu2-type structure. The magnetization was measured by a vibrating sample magnetometer (VSM). No first-order phase transition in these compounds (x ≠ 0) is observed. With the increasing Gd content, Curie temperature (TC) increases almost linearly. The magnetic entropy changes (|ΔSM|) as a function of the temperature in magnetic field (1 T) for (GdxDy1-x)Co2 have been calculated. The origin of the magnetocaloric effect and the potential application of (GdxDY1-x)Co2 as a working material for magnetic refrigerants have also been discussed.

KW - (Gd Dy)Co compounds

KW - First-order phase transition

KW - Magnetic entropy changes

KW - Magnetocaloric effects

KW - Second-order phase transition

UR - https://www.scopus.com/pages/publications/0037071055

U2 - 10.1016/S0375-9601(02)00159-7

DO - 10.1016/S0375-9601(02)00159-7

M3 - 文章

AN - SCOPUS:0037071055

SN - 0375-9601

VL - 297

SP - 247

EP - 252

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 3-4

ER -

Magnetic properties and magnetocaloric effects in (GD_xDy_1-x)CO₂ compounds

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Keywords

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