Issue 15, 2011

Direct growth of β-FeSi2nanowires with infrared emission, ferromagnetism at room temperature and high magnetoresistance via a spontaneous chemical reaction method

Abstract

Self-catalyzed β-FeSi2 nanowires with a high aspect ratio have been synthesized by a spontaneous chemical vapor transport and reaction method. The as-synthesized single-crystalline β-FeSi2 nanowires exhibit photoluminescence at a wavelength of 1.54 μm, which is suitable for Si-based optical communication, at room temperature. The conductivity of a single-stem β-FeSi2 nanowire was found to increase with decreasing diameter. The room temperature ferromagnetism and high magnetoresistance performance of 6% at 200 K indicates that β-FeSi2 nanowires are potentially applicable for spintronic nanodevices.

Graphical abstract: Direct growth of β-FeSi2 nanowires with infrared emission, ferromagnetism at room temperature and high magnetoresistance via a spontaneous chemical reaction method

Supplementary files

Article information

Article type
Paper
Submitted
16 Jan 2011
Accepted
17 Feb 2011
First published
08 Mar 2011

J. Mater. Chem., 2011,21, 5704-5709

Direct growth of β-FeSi2 nanowires with infrared emission, ferromagnetism at room temperature and high magnetoresistance via a spontaneous chemical reaction method

S. Hung, P. Yeh, L. Chu, C. Chen, L. Chou, Y. Wu and L. Chen, J. Mater. Chem., 2011, 21, 5704 DOI: 10.1039/C1JM10232J

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