Large magnetic entropy change and magnetoresistance in a Ni41Co9Mn40Sn10 magnetic shape memory alloy

L. Huang; D. Y. Cong; L. Ma; Z. H. Nie; M. G. Wang; Z. L. Wang; H. L. Suo; Y. Ren; Y. D. Wang

doi:10.1016/j.jallcom.2015.06.175

Large magnetic entropy change and magnetoresistance in a Ni₄₁Co₉Mn₄₀Sn₁₀ magnetic shape memory alloy

L. Huang, D. Y. Cong, L. Ma, Z. H. Nie, M. G. Wang, Z. L. Wang, H. L. Suo, Y. Ren, Y. D. Wang

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

60 Citations (Scopus)

Abstract

Abstract A polycrystalline Ni₄₁Co₉Mn₄₀Sn₁₀ (at. %) magnetic shape memory alloy was prepared by arc melting and characterized mainly by magnetic measurements, in-situ high-energy X-ray diffraction (HEXRD), and mechanical testing. A large magnetoresistance of 53.8% (under 5 T) and a large magnetic entropy change of 31.9 J/(kg K) (under 5 T) were simultaneously achieved. Both of these values are among the highest values reported so far in Ni-Mn-Sn-based Heusler alloys. The large magnetic entropy change, closely related to the structural entropy change, is attributed to the large unit cell volume change across martensitic transformation as revealed by our in-situ HEXRD experiment. Furthermore, good compressive properties were also obtained. The combination of large magnetoresistance, large magnetic entropy change, and good compressive properties, as well as low cost makes this alloy a promising candidate for multifunctional applications.

Original language	English
Article number	34582
Pages (from-to)	1081-1085
Journal	Journal of Alloys and Compounds
Volume	647
DOIs	https://doi.org/10.1016/j.jallcom.2015.06.175
Publication status	Published - 8 Jul 2015
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Magnetic shape memory alloy
Magnetocaloric effect
Magnetoresistance
Martensitic transformation
Synchrotron high-energy X-ray diffraction

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10.1016/j.jallcom.2015.06.175

https://www.sciencedirect.com/science/article/am/pii/S0925838815302942

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Cite this

@article{3fa9533d91bc4a60a1d157f360bb6294,

title = "Large magnetic entropy change and magnetoresistance in a Ni41Co9Mn40Sn10 magnetic shape memory alloy",

abstract = "Abstract A polycrystalline Ni41Co9Mn40Sn10 (at. %) magnetic shape memory alloy was prepared by arc melting and characterized mainly by magnetic measurements, in-situ high-energy X-ray diffraction (HEXRD), and mechanical testing. A large magnetoresistance of 53.8% (under 5 T) and a large magnetic entropy change of 31.9 J/(kg K) (under 5 T) were simultaneously achieved. Both of these values are among the highest values reported so far in Ni-Mn-Sn-based Heusler alloys. The large magnetic entropy change, closely related to the structural entropy change, is attributed to the large unit cell volume change across martensitic transformation as revealed by our in-situ HEXRD experiment. Furthermore, good compressive properties were also obtained. The combination of large magnetoresistance, large magnetic entropy change, and good compressive properties, as well as low cost makes this alloy a promising candidate for multifunctional applications.",

keywords = "Magnetic shape memory alloy, Magnetocaloric effect, Magnetoresistance, Martensitic transformation, Synchrotron high-energy X-ray diffraction",

author = "L. Huang and Cong, {D. Y.} and L. Ma and Nie, {Z. H.} and Wang, {M. G.} and Wang, {Z. L.} and Suo, {H. L.} and Y. Ren and Wang, {Y. D.}",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

year = "2015",

month = jul,

day = "8",

doi = "10.1016/j.jallcom.2015.06.175",

language = "English",

volume = "647",

pages = "1081--1085",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Large magnetic entropy change and magnetoresistance in a Ni41Co9Mn40Sn10 magnetic shape memory alloy

AU - Huang, L.

AU - Cong, D. Y.

AU - Ma, L.

AU - Nie, Z. H.

AU - Wang, M. G.

AU - Wang, Z. L.

AU - Suo, H. L.

AU - Ren, Y.

AU - Wang, Y. D.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2015/7/8

Y1 - 2015/7/8

N2 - Abstract A polycrystalline Ni41Co9Mn40Sn10 (at. %) magnetic shape memory alloy was prepared by arc melting and characterized mainly by magnetic measurements, in-situ high-energy X-ray diffraction (HEXRD), and mechanical testing. A large magnetoresistance of 53.8% (under 5 T) and a large magnetic entropy change of 31.9 J/(kg K) (under 5 T) were simultaneously achieved. Both of these values are among the highest values reported so far in Ni-Mn-Sn-based Heusler alloys. The large magnetic entropy change, closely related to the structural entropy change, is attributed to the large unit cell volume change across martensitic transformation as revealed by our in-situ HEXRD experiment. Furthermore, good compressive properties were also obtained. The combination of large magnetoresistance, large magnetic entropy change, and good compressive properties, as well as low cost makes this alloy a promising candidate for multifunctional applications.

AB - Abstract A polycrystalline Ni41Co9Mn40Sn10 (at. %) magnetic shape memory alloy was prepared by arc melting and characterized mainly by magnetic measurements, in-situ high-energy X-ray diffraction (HEXRD), and mechanical testing. A large magnetoresistance of 53.8% (under 5 T) and a large magnetic entropy change of 31.9 J/(kg K) (under 5 T) were simultaneously achieved. Both of these values are among the highest values reported so far in Ni-Mn-Sn-based Heusler alloys. The large magnetic entropy change, closely related to the structural entropy change, is attributed to the large unit cell volume change across martensitic transformation as revealed by our in-situ HEXRD experiment. Furthermore, good compressive properties were also obtained. The combination of large magnetoresistance, large magnetic entropy change, and good compressive properties, as well as low cost makes this alloy a promising candidate for multifunctional applications.

KW - Magnetic shape memory alloy

KW - Magnetocaloric effect

KW - Magnetoresistance

KW - Martensitic transformation

KW - Synchrotron high-energy X-ray diffraction

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U2 - 10.1016/j.jallcom.2015.06.175

DO - 10.1016/j.jallcom.2015.06.175

M3 - RGC 21 - Publication in refereed journal

SN - 0925-8388

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SP - 1081

EP - 1085

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

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ER -