Magnetic and Structural Properties of Ni/NiO Nanoparticles Prepared Using Nickel Acetate and Polyvinyl Acetate Precursor

被引：17

作者：

Ahmadvand, Hossein ^{[1
]}

Salamati, Hadi ^{[1
]}

Kameli, Parviz ^{[1
]}

Razavi, Fereidoon S. ^{[2
]}

机构：

[1] Isfahan Univ Technol, Dept Phys, Esfahan 8415683111, Iran

[2] Brock Univ, Dept Phys, St Catharines, ON L2S 3A1, Canada

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2010年 / 23卷 / 08期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Magnetic nanoparticles; Ni/NiO nanoparticles; Spin-glass; Blocking; NI;

D O I：

10.1007/s10948-010-0797-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Ni/NiO nanoparticles were synthesized using a mixture of nickel acetate and polyvinyl acetate as precursors, followed by heating between 350-450 A degrees C. The prepared samples were investigated using XRD, TEM and SQUID magnetometry. Depending on the heating temperature, the average sizes of Ni and NiO crystallites were found to be in the ranges of 25-37 nm and 10-26 nm, respectively. The analysis of XRD patterns shows that the volume percentage of Ni can be easily controlled by the heating temperature. Magnetization measurements show that the samples consist of ferromagnetic moments which are blocked at low temperatures and a disordered NiO component which causes spin-glass like behavior.

引用

页码：1467 / 1471

页数：5

共 17 条

[1] Finite-size effects in fine particles: magnetic and transport properties [J].