The structural and magnetic properties of Mn2-xFexNiGa Heusler alloys

被引：18

作者：

Luo, Hongzhi ^{[1
,2
]}

Meng, Fanbin ^{[1
]}

Feng, Zhongqiu ^{[1
]}

Li, Yangxian ^{[1
]}

Zhu, Wei ^{[2
]}

Wu, Guangheng ^{[2
]}

Zhu, Xiaoxi ^{[3
]}

Jiang, Chengbao ^{[3
]}

Xu, Huibin ^{[3
]}

机构：

[1] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin 300130, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

[3] Beijing Univ Aeronaut & Astronaut, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 107卷 / 01期

基金：

中国国家自然科学基金;

关键词：

doping; ferrimagnetic materials; gallium alloys; iron alloys; lattice constants; magnetisation; manganese alloys; martensitic transformations; nickel alloys; SHAPE-MEMORY ALLOYS; MN; NI; TRANSFORMATION; PHASE;

D O I：

10.1063/1.3269722

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of Fe substitution on the phase transformation and magnetic properties of Mn2NiGa has been studied. A single bcc phase was obtained in Mn2-xFexNiGa (x=0-0.6). With the substitution of Fe for Mn, the lattice constant decreases gradually. The martensitic transformation can be observed when x=0-0.3. Both the martensitic transformation and austenitic transformation temperatures decrease monotonically with increasing Fe content, which is different from common electron concentration dependence in Ni-Mn-Ga system. The saturation magnetizations M-s of Mn2-xFexNiGa in both austenitic and martensitic phases increase obviously with the doping of Fe, while the variation of T-C shows an opposite tendency. Theoretical calculations indicate that both austenitic and martensitic phases are ferrimagnets. The Fe moment varies from positive to negative after the tetragonal distortion, which leads to the decrease of the saturation magnetization.

引用

页数：5

共 20 条

[1] Comment on "Physical and electronic structure and magnetism of Mn2NiGa:: Experiment and density-functional theory calculations" [J].

Barman, S. R. ;

Chakrabarti, Aparna .

PHYSICAL REVIEW B, 2008, 77 (17)

[2] Martensitic transition, ferrimagnetism and Fermi surface nesting in Mn2NiGa [J].

Barman, S. R. ;

Banik, S. ;

Shukla, A. K. ;

Kamal, C. ;

Chakrabarti, Aparna .

EPL, 2007, 80 (05)

[3] Compositional instability of β-phase in Ni-Mn-Ga alloys [J].

Chernenko, VA .

SCRIPTA MATERIALIA, 1999, 40 (05) :523-527

[4] ELECTRONIC-STRUCTURE AND LATTICE TRANSFORMATION IN NI2MNGA AND CO2NBSN [J].

FUJII, S ;

ISHIDA, S ;

ASANO, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1989, 58 (10) :3657-3665

[5] Crystal structure and high-temperature magnetoplasticity in the new Ni-Mn-Ga-Cu magnetic shape memory alloys [J].

Glavatskyy, I. ;

Glavatska, N. ;

Dobrinsky, A. ;

Hoffmann, J. -U. ;

Sorberg, O. ;

Hannula, S. -P. .

SCRIPTA MATERIALIA, 2007, 56 (07) :565-568

[6] Empirical mapping of Ni-Mn-Ga properties with composition and valence electron concentration [J].

Jin, X ;

Marioni, M ;

Bono, D ;

Allen, SM ;

O'Handley, RC ;

Hsu, TY .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (10) :8222-8224

[7] Martensitic transformation and shape memory effect in a ferromagnetic shape memory alloy:: Mn2NiGa -: art. no. 262504 [J].

Liu, GD ;

Chen, JL ;

Liu, ZH ;

Dai, XF ;

Wu, GH ;

Zhang, B ;

Zhang, XX .

APPLIED PHYSICS LETTERS, 2005, 87 (26) :1-3

[8] Martensitic transformation and shape memory effect in ferromagnetic Heusler alloy Ni2FeGa [J].

Liu, ZH ;

Zhang, M ;

Cui, YT ;

Zhou, YQ ;

Wang, WH ;

Wu, GH ;

Zhang, XX ;

Xiao, G .

APPLIED PHYSICS LETTERS, 2003, 82 (03) :424-426

[9] Magnetic-field-induced martensitic transformation in MnNiGa:Co alloys [J].

Ma, L. ;

Zhang, H. W. ;

Yu, S. Y. ;

Zhu, Z. Y. ;

Chen, J. L. ;

Wu, G. H. ;

Liu, H. Y. ;

Qu, J. P. ;

Li, Y. X. .

APPLIED PHYSICS LETTERS, 2008, 92 (03)

[10] ITERATIVE MINIMIZATION TECHNIQUES FOR ABINITIO TOTAL-ENERGY CALCULATIONS - MOLECULAR-DYNAMICS AND CONJUGATE GRADIENTS [J].

PAYNE, MC ;

TETER, MP ;

ALLAN, DC ;

ARIAS, TA ;

JOANNOPOULOS, JD .

REVIEWS OF MODERN PHYSICS, 1992, 64 (04) :1045-1097

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