Preparation and characterization of highly ordered vanadium-iron cyanide molecular magnet nanowire arrays

被引:27
作者
Zhou, PH [1 ]
Xue, DS [1 ]
Luo, HQ [1 ]
Yao, JL [1 ]
Shi, HG [1 ]
机构
[1] Lanzhou Univ, MOE, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China
关键词
D O I
10.1088/0957-4484/15/1/005
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Highly ordered vanadium-iron cyanide molecular magnet nanowire arrays have been prepared for the first time using an electrodepositing technology with two-step anodized anodic aluminium oxide films. Selectable diameters and lengths of the nanowires can be obtained by controlling the diameters of the nanopores in the anodic aluminium oxide films and the electrodepositing time, respectively. X-ray diffraction and transmission electron microscopy measurement results show that the vanadium-iron cyanide nanowires are straight, continuous, and highly crystalline with a face-centred cubic cubic structure of a = 10.14 Angstrom. The x-ray photoelectron system, Mossbauer spectrum and infrared spectrum measurement results indicate that the oxidation state of the metal ions in the vanadium-iron nanowires can be expressed as V4+-CN-Fe2+. The hysteresis loop of the vanadium-iron cyanide nanowires at 1.9 K indicates that there are magnetic exchange interactions between vanadium and iron ions in the nanowires.
引用
收藏
页码:27 / 31
页数:5
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