Título

Large reversible magnetic entropy change in rapidly solidified Ni0.895Cr0.105MnGe1.05 melt-spun ribbons

Autor

Anil Aryal

Abdiel Quetz

CESAR FIDEL SANCHEZ VALDES

Pablos Jesús Ibarra Gaytán

Sudip Pandey

Igor Dubenko

JOSE LUIS SANCHEZ LLAMAZARES

Shane Stadler

Naushad Ali

Nivel de Acceso

Acceso Abierto

Identificador alterno

doi: https://doi.org/10.1016/j.intermet.2018.04.003

Resumen o descripción

"The crystal structure, and magnetic and magnetocaloric properties of rapidly solidified Ni0.895Cr0.105MnGe1.05 melt-spun ribbons is reported. The ribbon samples crystallize into a single-phase hexagonal Ni2In-type structure at room temperature. The as-quenched ribbons showed a second order magnetic transition at 192 ± 1 K at μoH = 5 mT. A magnetic-field-induced transition from an antiferromagnetic (AFM)-like to a ferromagnetic (FM) state of martensite structure was observed in annealed ribbons below the temperature of the martensitic transformation (TM ∼ 245 ± 1 K). The annealed ribbons undergo a first-order magnetostructural transition (MST) with a large maximum reversible magnetic entropy change of ΔSM = 16.1 J kg−1 K−1 (this is about a four-fold increase compared to the ΔSM observed for the bulk sample of the same nominal composition) and RC = 144 J kg−1 for μoΔH = 5 T at temperature T = TM ∼ 245 ± 1 K. The increase in the ΔSM peak value leads to an improved RC compared to that of the bulk sample (122 J kg−1). The observed MCE and quasi-reversible character of ΔSM at the MST illustrates the potential of Ni0.895Cr0.105MnGe1.05 ribbons for magnetic cooling technology."

Editor

Elsevier

Fecha de publicación

2018

Tipo de publicación

Artículo

Versión de la publicación

Versión enviada

Formato

application/pdf

Sugerencia de citación

Anil Aryal, Abdiel Quetz, C.F. Sánchez-Valdés, P.J. Ibarra-Gaytán, Sudip Pandey, Igor Dubenko, J.L. Sánchez Llamazares, Shane Stadler, Naushad Ali, Large reversible magnetic entropy change in rapidly solidified Ni0.895Cr0.105MnGe1.05 melt-spun ribbons, Intermetallics, Volume 97, 2018, Pages 89-94.

Repositorio Orígen

Repositorio IPICYT

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