Large entropy change associated with the elastocaloric effect in polycrystalline Ni-Mn-Sb-Co magnetic shape memory alloys

Rubén Millán-Solsona; Enric Stern-Taulats; Eduard Vives; Antoni Planes; Jyoti Sharma; Ajaya K. Nayak; K. G. Suresh; Lluís Mañosa

doi:10.1063/1.4904419

Large entropy change associated with the elastocaloric effect in polycrystalline Ni-Mn-Sb-Co magnetic shape memory alloys

Rubén Millán-Solsona, Enric Stern-Taulats, Eduard Vives, Antoni Planes, Jyoti Sharma, Ajaya K. Nayak, K. G. Suresh, Lluís Mañosa

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Abstract

We report on compressive strain measurements in polycrystalline magnetic shape memory alloys aimed at determining the entropy change associated with their elastocaloric effect. It is shown that for a maximum applied stress of 100 MPa, the stress-induced entropy change amounts to ΔS=21 J/kg K. This value compares well to the values reported for nonmagnetic shape memory alloys, and it is of the same order as those reported for the best giant magnetocaloric materials at moderate magnetic fields.

Original language	English
Article number	241901
Journal	Applied Physics Letters
Volume	105
Issue number	24
DOIs	https://doi.org/10.1063/1.4904419
State	Published - Dec 15 2014
Externally published	Yes

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title = "Large entropy change associated with the elastocaloric effect in polycrystalline Ni-Mn-Sb-Co magnetic shape memory alloys",

abstract = "We report on compressive strain measurements in polycrystalline magnetic shape memory alloys aimed at determining the entropy change associated with their elastocaloric effect. It is shown that for a maximum applied stress of 100 MPa, the stress-induced entropy change amounts to ΔS=21 J/kg K. This value compares well to the values reported for nonmagnetic shape memory alloys, and it is of the same order as those reported for the best giant magnetocaloric materials at moderate magnetic fields.",

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T1 - Large entropy change associated with the elastocaloric effect in polycrystalline Ni-Mn-Sb-Co magnetic shape memory alloys

AU - Millán-Solsona, Rubén

AU - Stern-Taulats, Enric

AU - Vives, Eduard

AU - Planes, Antoni

AU - Sharma, Jyoti

AU - Nayak, Ajaya K.

AU - Suresh, K. G.

AU - Mañosa, Lluís

PY - 2014/12/15

Y1 - 2014/12/15

N2 - We report on compressive strain measurements in polycrystalline magnetic shape memory alloys aimed at determining the entropy change associated with their elastocaloric effect. It is shown that for a maximum applied stress of 100 MPa, the stress-induced entropy change amounts to ΔS=21 J/kg K. This value compares well to the values reported for nonmagnetic shape memory alloys, and it is of the same order as those reported for the best giant magnetocaloric materials at moderate magnetic fields.

AB - We report on compressive strain measurements in polycrystalline magnetic shape memory alloys aimed at determining the entropy change associated with their elastocaloric effect. It is shown that for a maximum applied stress of 100 MPa, the stress-induced entropy change amounts to ΔS=21 J/kg K. This value compares well to the values reported for nonmagnetic shape memory alloys, and it is of the same order as those reported for the best giant magnetocaloric materials at moderate magnetic fields.

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U2 - 10.1063/1.4904419

DO - 10.1063/1.4904419

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VL - 105

JO - Applied Physics Letters

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Large entropy change associated with the elastocaloric effect in polycrystalline Ni-Mn-Sb-Co magnetic shape memory alloys

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