Synthesis of Ordered Ultra-long Manganite Nanowires via Electrospinning Method

We develop a new electrospinning method to prepare ultra-long ordered La1-xSrxMnO3 （LSMO） nanowires. The length is up to several centimeters and is only limited by the size of the collector. The well-ordered straight-line structure ensures the transport measurement, which is impossible to be carried...

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Bibliographic Details
Published inChinese physics letters Vol. 33; no. 9; pp. 116 - 119
Main Author 郑俊 杜恺 肖迪 周正阳 魏文刚 陈金杰 段立峰 沈健
Format Journal Article
LanguageEnglish
Published 01.09.2016
Subjects
La1-xSrxMnO3
LSMO
合成
有序
纳米线
金属-绝缘体
锰氧化物
静电纺丝法
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Summary:We develop a new electrospinning method to prepare ultra-long ordered La1-xSrxMnO3 （LSMO） nanowires. The length is up to several centimeters and is only limited by the size of the collector. The well-ordered straight-line structure ensures the transport measurement, which is impossible to be carried out for the random nanowires fabricated by the traditional electrospinning method. Magnetic and transport measurements indicate that the physical properties of the LSMO nanowires depend sensitively on the doping concentration. At the optimum doping, the LSMO wires are ferromagnetic at room temperature with a metal-insulator transition temperature close to room temperature. Magnetic force microscopy studies are also performed to provide a microscopic view of these ultra-long nanowires.
Bibliography:Jun Zheng1, Kai Du1, Di Xiao1, Zheng-Yang Zhou1, Wen-Gang Wei1,2, Jin-Jie Chen1, Li-Feng Yin1,3, Jian Shen1（1 State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433 2 College of Physics Science and Information Engineering, Mebei Normal University, Shijiazhuang 050024 3 Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093）
11-1959/O4
We develop a new electrospinning method to prepare ultra-long ordered La1-xSrxMnO3 （LSMO） nanowires. The length is up to several centimeters and is only limited by the size of the collector. The well-ordered straight-line structure ensures the transport measurement, which is impossible to be carried out for the random nanowires fabricated by the traditional electrospinning method. Magnetic and transport measurements indicate that the physical properties of the LSMO nanowires depend sensitively on the doping concentration. At the optimum doping, the LSMO wires are ferromagnetic at room temperature with a metal-insulator transition temperature close to room temperature. Magnetic force microscopy studies are also performed to provide a microscopic view of these ultra-long nanowires.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/33/9/097501