The effect of Pd on martensitic transformation and magnetic properties for Ni50Mn38−xPdxSn12Heusler alloys

C. Jing; D. Zheng; Z. Li; L. J. Yu; Y. L. Zhang; Y. Liu; J. K. Sun; C. Q. Liu; D. M. Deng; W. T. Yang

doi:10.1063/1.4942953

AIP Advances (May 2016)

The effect of Pd on martensitic transformation and magnetic properties for Ni50Mn38−xPdxSn12Heusler alloys

C. Jing,
D. Zheng,
Z. Li,
L. J. Yu,
Y. L. Zhang,
Y. Liu,
J. K. Sun,
C. Q. Liu,
D. M. Deng,
W. T. Yang

Affiliations

C. Jing: Department of Physics, Shanghai University, Shanghai 200444, China
D. Zheng: Department of Physics, Shanghai University, Shanghai 200444, China
Z. Li: College of Physics and Electronic Engineering, Key Laboratory for Advanced Functional and Low Dimensional Materials of Yunnan Higher Education Institutes, Qujing Normal University, Qujing 655011, China
L. J. Yu: Department of Physics, Shanghai University, Shanghai 200444, China
Y. L. Zhang: Department of Physics, Shanghai University, Shanghai 200444, China
Y. Liu: Department of Physics, Shanghai University, Shanghai 200444, China
J. K. Sun: Department of Physics, Shanghai University, Shanghai 200444, China
C. Q. Liu: Department of Physics, Shanghai University, Shanghai 200444, China
D. M. Deng: Department of Physics, Shanghai University, Shanghai 200444, China
W. T. Yang: Shanghai Key Laboratory of High Temperature Superconductors, Shanghai 200444, China

DOI: https://doi.org/10.1063/1.4942953
Journal volume & issue: Vol. 6, no. 5
pp. 056202 – 056202-6

Abstract

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In the past decade, Mn rich Ni-Mn based alloys have attained considerable attention due to their abundant physics and potential application as multifunctional materials. In this paper, polycrystalline Ni50Mn38−xPdxSn12 (x = 0, 2, 4, 6) Heusler alloys have been prepared, and the martensitic phase transformation (MPT) together with the shape memory effect and the magnetocaloric effect has been investigated. The experimental result indicates that the MPT evidently shifts to a lower temperature with increase of Pd substitution for Mn atoms, which can be attributed to the weakness of the hybridization between the Ni atom and excess Mn on the Sn site rather than the electron concentration. The physics properties study focused on the sample of Ni50Mn34Pd4Sn12 shows a good two-way shape memory behavior, and the maximum value of strain Δ L/L reaches about 0.13% during the MPT. The small of both entropy change Δ ST and magnetostrain can be ascribed to the inconspicuous influence of magnetic field induced MPT.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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