Single-Crystalline Ferromagnetic Mn4Si7 Nanowires

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• 作者：Moon-Ho Ham ; Jae-Woong Lee ; Kyeong-Ju Moon ; Ji-Hyuk Choi ; Jae-Min Myoung
• 刊名：Journal of Physical Chemistry C
• 出版年：2009
• 出版时间：May 14, 2009
• 年：2009
• 卷：113
• 期：19
• 页码：8143-8146
• 全文大小：157K
• 年卷期：v.113,no.19(May 14, 2009)
• ISSN：1932-7455

文摘

We report the synthesis of single-crystalline Mn₄Si₇ nanowires using SiO and MnCl₂ powders via the chemical vapor deposition method and their ferromagnetic properties. It is shown from XRD and TEM analyses that the synthesized nanowires have single-crystalline tetragonal Mn₄Si₇ structure with the growth direction along [002]. The magnetic measurements indicate that the nanowires are ferromagnetic with a Curie temperature of 120 K. In addition, it is found that the nanowires are degenerately doped. These results suggest that the ferromagnetic Mn₄Si₇ nanowires could be employed for Si-based spintronic nanodevices coupled with complementary metal−oxide−semiconductor integrated circuits.