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Shengfu Yang

作者:  发布:2015-06-26 00:00:00  点击量:

报告题目:Novel nanoscience in superfluid helium droplets: from spherical nanoparticles to nanowires

人:Shengfu Yang University of Leicester

报告时间:2015626日上午1000

报告地点:化学楼二楼一号会议室

报告人简介:

Prof. Yang has worked in several world-class laboratories in China (USTC), France (Université Joseph Fourier), United States (MIT) and Finland (University of Helsinki). He joined the University of Leicester in 2003 and was awarded a prestigious EPSRC Advanced Research Fellowship in 2006. At Leicester his research focuses on superfluid helium droplets, covering both Physical Chemistry and NanoChemistry. He was promoted to Professor in NanoChemistry in 2014, and received the NanoScience Award in 2015.

In this lecture, he will present their recent progress in the fabrication of novel nanoparticles and nanowires using superfluid helium droplets. A series of exploratory experiments will be reported, including the fabrication of single crystalline nanoparticles, core-shell nanowires and novel magnetic nanoparticles using superfluid helium droplets as the nano-reactors. In large helium droplets the first direct evidence for the presence of quantized vortices in nanoscale superfluid helium has been obtained, which are then developed as a generic means for the direct preparation of ultrathin nanowires. Finally, discovery of multiply quantized vortices in superfluid will be addressed.

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