Magnetic and structural characterizations of Heusler Ni2FeGa nanoparticles

被引：12

作者：

Xu, Yunli ^{[1
,2
]}

Liu, Min ^{[2
]}

Huang, Xiufeng ^{[2
]}

Dai, Zhiwen ^{[2
]}

Qiu, Hongmei ^{[3
]}

Yu, Guanghua ^{[1
]}

Pan, Liqing ^{[2
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

[2] China Three Gorges Univ, Coll Sci, Yichang 443002, Peoples R China

[3] Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China

来源：

MATERIALS RESEARCH EXPRESS | 2016年 / 3卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Heusler nanoparticles; ferromagnetism; chemical synthesis; MARTENSITIC-TRANSFORMATION; MICROSTRUCTURE; TEMPERATURE; NANOWIRES; DRIVEN;

D O I：

10.1088/2053-1591/3/11/115012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work describes the chemical preparation, structural characterization and magnetic properties of Heusler Ni2FeGa nanoparticles. The nanoparticles were synthesized by reducing a methanol solution mixture of NiCl2 center dot 6H(2)O, Fe(NO3)(3)center dot 9H(2)O and Ga(NO3)center dot xH(2)O, and using SBA-15 as template. The obtained nanoparticles were investigated by means of x-ray diffraction, transmission electron microscopy, and vibrating sample magnetometer. The structure of the prepared nanoparticles is Heusler L2(1) phase with a second gamma phase, and the ratio of the two components could be adjusted by the concentration of SBA in the precursor solution. The prepared nanoscale Ni2FeGa heusler alloys with a tensile strain of 0.56% present ferromagnetism at room-temperature and its Curie temperature exceeds 340 K.

引用

页数：6

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