Half-Metallic Sandwich Molecular Wires with Negative Differential Resistance and Sign-Reversible High Spin-Filter Efficiency

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• 作者：Lu Wang ; Xingfa Gao ; Xin Yan ; Jing Zhou ; Zhengxiang Gao ; Shigeru Nagase ; Stefano Sanvito ; Yutaka Maeda ; Takeshi Akasaka ; Wai Ning Mei ; Jing Lu
• 刊名：Journal of Physical Chemistry C
• 出版年：2010
• 出版时间：December 23, 2010
• 年：2010
• 卷：114
• 期：50
• 页码：21893-21899
• 全文大小：330K
• 年卷期：v.114,no.50(December 23, 2010)
• ISSN：1932-7455

文摘

Using density functional theory and nonequilibrium Green’s function method, we construct organometallic nanowires that consist of Fe or V atoms sandwiched between composite molecules (Cp*FeCp*, where Cp* is C₅(CH₃)₅). For the first time, we demonstrate that half-metallicity, negative differential resistance, and sign-reversible high spin-filter capability can coexist remarkably in one organometallic nanowire (FeCp* wire). This renders FeCp* wire promising in electronics and spintronics.