Tunable magnetocaloric effect around room temperature by Fe doping in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si5.gif" overflow="scroll"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Mn</mml:mi></mml:mrow><mml:mrow><mml:mn>0.98</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mi mathvariant="normal">Cr</mml:mi></mml:mrow><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mn>0.02</mml:mn><mml:mo>-</mml:mo><mml:mi mathvariant="normal">x</mml:mi><mml:mo stretchy="fal

Ipus, J.J.; Ribeiro, P. O.; Caraballo-Vivas, R.J.; Carvalho, A. Magnus G.; Coelho, A. A.; Franco, V.; Rocco, D.L.

doi:10.1016/j.jmmm.2017.04.030

Journal of Magnetism and Magnetic Materials

2017

DOI: 10.1016/j.jmmm.2017.04.030

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Tunable magnetocaloric effect around room temperature by Fe doping in Mn0.98Cr(0.02-x
J.J. Ipus
¹
,
P. O. Ribeiro
²
,
R.J. Caraballo-Vivas
³

et al.

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Effects of Fe-doping on structural, magnetic and magnetocaloric properties of the intermetallic compound Gd₇Pd_3- _x Fe _x

Huo

Cheng

et al. 2018

International Journal of Materials Research

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The structural, magnetic and magnetocaloric properties of Gd7Pd3-xFex compounds with x = 0, 0.2 and 0.4 were investigated. Rietveld refinement of X-ray powder diffraction shows that all the investigated samples are single phase and crystallize in a hexagonal structure with the space group P63mc. The lattice parameters (a, b and c), and the cell volume (v) decrease with the increase of Fe content in Gd7Pd3-xFex, mainly because of the difference in atomic radius between Fe and Pd. Magnetization versus temperature in a magnetic applied field of 0.05 T shows that Gd7Pd3-xFex displays a paramagnetic (PM) – ferromagnetic (FM) transition with the Curie temperature TC decreasing from 336 K for x = 0.0 to 319 K for x = 0.4. Under a field change of 0 to 5 T, the maximum values of the magnetic entropy change $\left( {|{\rm{\Delta }}S_M^{max}|} \right)$ are 5.09 J kg−1 K−1, 4.89 J kg−1 K−1, and 4.46 J kg−1 for x = 0, 0.2, and 0.4, and the corresponding relative cooling powers (RCP) amount to 387.6 J Kg−1, 357.2 J · Kg−1, and 385.5 J Kg−1, respectively. The stable magnetocaloric effect and refrigeration capacity near room temperature reveal that the Gd7Pd3-xFex compounds may be considered as refrigerants for magnetic refrigeration.

show abstract

Effects of Fe-doping on structural, magnetic and magnetocaloric properties of the intermetallic compound Gd₇Pd_3- _x Fe _x

Huo

Cheng

et al. 2018

International Journal of Materials Research

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show abstract

Crystal and magnetic properties of 57Fe doped MnAs for magnetic refrigeration application

Lim

Cho

Kim

et al. 2017

Journal of the Korean Physical Society

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Tunable magnetocaloric effect around room temperature by Fe doping in Mn0.98Cr(0.02-x
J.J. Ipus
¹
,
P. O. Ribeiro
²
,
R.J. Caraballo-Vivas
³

et al.

Cited by 2 publications

References 28 publications

Effects of Fe-doping on structural, magnetic and magnetocaloric properties of the intermetallic compound Gd₇Pd_3- _x Fe _x

Effects of Fe-doping on structural, magnetic and magnetocaloric properties of the intermetallic compound Gd₇Pd_3- _x Fe _x

Crystal and magnetic properties of 57Fe doped MnAs for magnetic refrigeration application

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About

Tunable magnetocaloric effect around room temperature by Fe doping in Mn0.98Cr(0.02-xJ.J. Ipus1, P. O. Ribeiro2, R.J. Caraballo-Vivas3 et al.

Cited by 2 publications

References 28 publications

Effects of Fe-doping on structural, magnetic and magnetocaloric properties of the intermetallic compound Gd7Pd3- x Fe x

Effects of Fe-doping on structural, magnetic and magnetocaloric properties of the intermetallic compound Gd7Pd3- x Fe x

Crystal and magnetic properties of 57Fe doped MnAs for magnetic refrigeration application

Contact Info

Product

Resources

About

Tunable magnetocaloric effect around room temperature by Fe doping in Mn0.98Cr(0.02-x
J.J. Ipus
¹
,
P. O. Ribeiro
²
,
R.J. Caraballo-Vivas
³

et al.

Effects of Fe-doping on structural, magnetic and magnetocaloric properties of the intermetallic compound Gd₇Pd_3- _x Fe _x

Effects of Fe-doping on structural, magnetic and magnetocaloric properties of the intermetallic compound Gd₇Pd_3- _x Fe _x