Single crystalline magnetite nanotubes

被引：229

作者：

Liu, ZQ

Zhang, DH

Han, S

Li, C

Lei, B

Lu, WG

Fang, JY

Zhou, CW ^{[1
]}

机构：

[1] Univ So Calif, Dept Elect Engn Electrophys, Los Angeles, CA 90089 USA

[2] Univ New Orleans, Adv Mat Res Inst, New Orleans, LA 70148 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 01期

关键词：

D O I：

10.1021/ja0445239

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We descried a method to synthesize single crystalline Fe3O4 nanotubes by wet-etching the MgO inner cores of MgO/Fe3O4 core-shell nanowires. Homogeneous Fe3O4 nanotubes with controllable length, diameter, and wall thickness have been obtained. Resistivity of the Fe3O4 nanotubes was estimated to be ∼4 × 10-2 Ω cm at room temperature. Magnetoresistance of 1% was observed at T = 77 K when a magnetic field of B = 0.7 T was applied. The synthetic strategy presented here may be extended to a variety of materials such as YBCO, PZT, and LCMO which should provide ideal candidates for fundamental studies of superconductivity, piezoelectricity, and ferromagnetism in nanoscale structures. Copyright © 2005 American Chemical Society.

引用

页码：6 / 7

页数：2

共 16 条

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