Giant magnetocaloric effect in antiferromagnetic DyVO4 compound

A. Midya; N. Khan; D. Bhoi; P. Mandal

doi:10.1016/j.physb.2014.03.019

Giant magnetocaloric effect in antiferromagnetic DyVO₄ compound

A. Midya
, N. Khan
, D. Bhoi
, P. Mandal

High Pressure

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

42 Scopus citations

Abstract

We have investigated the magnetic and magnetocaloric properties of DyVO₄ by magnetization and heat capacity measurements. χ(T) shows antiferromagnetic to paramagnetic transition at TNDy~3.5K. The compound undergoes a metamagnetic transition and exhibits a huge entropy change. The maximum values of magnetic entropy change (Δ^SM), adiabatic temperature change (Δ^Tad) and refrigerant capacity (RC) reach 26 J kg^-1 K^-1, 17 K, and 526 J kg^-1, respectively for a field change of 0-8 T. Moreover, the material is highly insulating and exhibits no thermal and field hysteresis, satisfying the necessary conditions for a good magnetic refrigerant material.

Original language	English
Pages (from-to)	43-45
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	448
DOIs	https://doi.org/10.1016/j.physb.2014.03.019
State	Published - Sep 1 2014

Keywords

Adiabatic temperature change
Magnetocaloric effect
Metamagnetic transition
Refrigerant capacity

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10.1016/j.physb.2014.03.019

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title = "Giant magnetocaloric effect in antiferromagnetic DyVO4 compound",

abstract = "We have investigated the magnetic and magnetocaloric properties of DyVO4 by magnetization and heat capacity measurements. χ(T) shows antiferromagnetic to paramagnetic transition at TNDy\textasciitilde{}3.5K. The compound undergoes a metamagnetic transition and exhibits a huge entropy change. The maximum values of magnetic entropy change (ΔSM), adiabatic temperature change (ΔTad) and refrigerant capacity (RC) reach 26 J kg-1 K-1, 17 K, and 526 J kg-1, respectively for a field change of 0-8 T. Moreover, the material is highly insulating and exhibits no thermal and field hysteresis, satisfying the necessary conditions for a good magnetic refrigerant material.",

keywords = "Adiabatic temperature change, Magnetocaloric effect, Metamagnetic transition, Refrigerant capacity",

author = "A. Midya and N. Khan and D. Bhoi and P. Mandal",

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T1 - Giant magnetocaloric effect in antiferromagnetic DyVO4 compound

AU - Midya, A.

AU - Khan, N.

AU - Bhoi, D.

AU - Mandal, P.

PY - 2014/9/1

Y1 - 2014/9/1

N2 - We have investigated the magnetic and magnetocaloric properties of DyVO4 by magnetization and heat capacity measurements. χ(T) shows antiferromagnetic to paramagnetic transition at TNDy~3.5K. The compound undergoes a metamagnetic transition and exhibits a huge entropy change. The maximum values of magnetic entropy change (ΔSM), adiabatic temperature change (ΔTad) and refrigerant capacity (RC) reach 26 J kg-1 K-1, 17 K, and 526 J kg-1, respectively for a field change of 0-8 T. Moreover, the material is highly insulating and exhibits no thermal and field hysteresis, satisfying the necessary conditions for a good magnetic refrigerant material.

AB - We have investigated the magnetic and magnetocaloric properties of DyVO4 by magnetization and heat capacity measurements. χ(T) shows antiferromagnetic to paramagnetic transition at TNDy~3.5K. The compound undergoes a metamagnetic transition and exhibits a huge entropy change. The maximum values of magnetic entropy change (ΔSM), adiabatic temperature change (ΔTad) and refrigerant capacity (RC) reach 26 J kg-1 K-1, 17 K, and 526 J kg-1, respectively for a field change of 0-8 T. Moreover, the material is highly insulating and exhibits no thermal and field hysteresis, satisfying the necessary conditions for a good magnetic refrigerant material.

KW - Adiabatic temperature change

KW - Magnetocaloric effect

KW - Metamagnetic transition

KW - Refrigerant capacity

UR - https://www.scopus.com/pages/publications/84904063226

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DO - 10.1016/j.physb.2014.03.019

M3 - Article

AN - SCOPUS:84904063226

SN - 0921-4526

VL - 448

SP - 43

EP - 45

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -

Giant magnetocaloric effect in antiferromagnetic DyVO₄ compound

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Keywords

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