Dopant effects on martensitic transition and magnetic properties of Ni51.5Mn25Ga23.5 materials

Zhi Yong Zhu; Wen Quan Wang; Yuan Hua Miao; Yan Song Wang; Li Jie Chen; Xue Fang Dai; Guo Dong Liu; Jing Lan Chen; Guang Heng Wu

Dopant effects on martensitic transition and magnetic properties of Ni_51.5Mn₂₅Ga_23.5 materials

Zhi Yong Zhu^*, Wen Quan Wang, Yuan Hua Miao, Yan Song Wang, Li Jie Chen, Xue Fang Dai, Guo Dong Liu, Jing Lan Chen, Guang Heng Wu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Ni_51.5Mn₂₃M₂Ga_23.5 materials are to reveal the dopant effect on the martensitic transition and the magnetic properties. We found that the dopants Ti, Zr, Hf, V, Nb, and Ta lower the martensitic transition temperature of the sample, but W increases it. The martensitic transition temperature is very sensitive to the atomic size when the valence electronic concentration keeps constant for the doping elements. The dopants Ti, Zr, Hf or V decrease the magnetic moment of Mn atom in the martensite at low temperature, while Nb, Ta or W enhance it. A corresponding variation of T_c of the materials is not observed, which indicates that the influence of the lattice change of martensitic transition on the magnetic properties should also be talken into account.

Original language	English (US)
Pages (from-to)	4894-4897
Number of pages	4
Journal	Wuli Xuebao/Acta Physica Sinica
Volume	54
Issue number	10
State	Published - Oct 2005
Externally published	Yes

Keywords

Dopant
Magnetism
Martensitic transformation
NiMnGa

ASJC Scopus subject areas

General Physics and Astronomy

Cite this

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title = "Dopant effects on martensitic transition and magnetic properties of Ni51.5Mn25Ga23.5 materials",

abstract = "Ni51.5Mn23M2Ga23.5 materials are to reveal the dopant effect on the martensitic transition and the magnetic properties. We found that the dopants Ti, Zr, Hf, V, Nb, and Ta lower the martensitic transition temperature of the sample, but W increases it. The martensitic transition temperature is very sensitive to the atomic size when the valence electronic concentration keeps constant for the doping elements. The dopants Ti, Zr, Hf or V decrease the magnetic moment of Mn atom in the martensite at low temperature, while Nb, Ta or W enhance it. A corresponding variation of Tc of the materials is not observed, which indicates that the influence of the lattice change of martensitic transition on the magnetic properties should also be talken into account.",

keywords = "Dopant, Magnetism, Martensitic transformation, NiMnGa",

author = "Zhu, {Zhi Yong} and Wang, {Wen Quan} and Miao, {Yuan Hua} and Wang, {Yan Song} and Chen, {Li Jie} and Dai, {Xue Fang} and Liu, {Guo Dong} and Chen, {Jing Lan} and Wu, {Guang Heng}",

year = "2005",

month = oct,

language = "English (US)",

volume = "54",

pages = "4894--4897",

journal = "Wuli Xuebao/Acta Physica Sinica",

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publisher = "Science Press",

number = "10",

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TY - JOUR

T1 - Dopant effects on martensitic transition and magnetic properties of Ni51.5Mn25Ga23.5 materials

AU - Zhu, Zhi Yong

AU - Wang, Wen Quan

AU - Miao, Yuan Hua

AU - Wang, Yan Song

AU - Chen, Li Jie

AU - Dai, Xue Fang

AU - Liu, Guo Dong

AU - Chen, Jing Lan

AU - Wu, Guang Heng

PY - 2005/10

Y1 - 2005/10

N2 - Ni51.5Mn23M2Ga23.5 materials are to reveal the dopant effect on the martensitic transition and the magnetic properties. We found that the dopants Ti, Zr, Hf, V, Nb, and Ta lower the martensitic transition temperature of the sample, but W increases it. The martensitic transition temperature is very sensitive to the atomic size when the valence electronic concentration keeps constant for the doping elements. The dopants Ti, Zr, Hf or V decrease the magnetic moment of Mn atom in the martensite at low temperature, while Nb, Ta or W enhance it. A corresponding variation of Tc of the materials is not observed, which indicates that the influence of the lattice change of martensitic transition on the magnetic properties should also be talken into account.

AB - Ni51.5Mn23M2Ga23.5 materials are to reveal the dopant effect on the martensitic transition and the magnetic properties. We found that the dopants Ti, Zr, Hf, V, Nb, and Ta lower the martensitic transition temperature of the sample, but W increases it. The martensitic transition temperature is very sensitive to the atomic size when the valence electronic concentration keeps constant for the doping elements. The dopants Ti, Zr, Hf or V decrease the magnetic moment of Mn atom in the martensite at low temperature, while Nb, Ta or W enhance it. A corresponding variation of Tc of the materials is not observed, which indicates that the influence of the lattice change of martensitic transition on the magnetic properties should also be talken into account.

KW - Dopant

KW - Magnetism

KW - Martensitic transformation

KW - NiMnGa

UR - http://www.scopus.com/inward/record.url?scp=27544461614&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:27544461614

SN - 1000-3290

VL - 54

SP - 4894

EP - 4897

JO - Wuli Xuebao/Acta Physica Sinica

JF - Wuli Xuebao/Acta Physica Sinica

IS - 10

ER -

Dopant effects on martensitic transition and magnetic properties of Ni_51.5Mn₂₅Ga_23.5 materials

Abstract

Keywords

ASJC Scopus subject areas

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