Hydrophilic polymer assisted synthesis of room-temperature ferromagnetic Fe3O4 nanochains

被引：49

作者：

Geng, B. Y. ^{[1
]}

Ma, J. Z.

Liu, X. W.

Du, Q. B.

Kong, M. G.

Zhang, L. D.

机构：

[1] Anhui Normal Univ, Coll Chem & Mat Sci, Anhui Key Lab Funct Mol Solids, Wuhu 241000, Peoples R China

[2] Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 04期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2432248

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

One-dimensional chains consisting of crystalline Fe3O4 nanoparticles have been synthesized by using a polyacrylic acid template method. The characterizations of composition, structure, and magnetic property of the chains are performed. The formation mechanism of Fe3O4 nanocrystal chains is proposed to be a polymer template and magnetostatic interaction. In a weak magnetic field, the synthesized nanochains can be reorganized. The as-synthesized nanochains are ferromagnetic at room temperature with lower saturation magnetization and higher coercivity value than those of bulk Fe3O4, which could have potential applications in nanosensors for rapid and sensitive detection of biologic or chemical molecules. (c) 2007 American Institute of Physics.

引用

页数：3

共 35 条

[1] Magnetism in low dimensionality [J].