In situ study on atomic mechanism of melting and freezing of single bismuth nanoparticles

CORC > 新疆理化技术研究所 > 中国科学院新疆理化技术研究所 > 环境科学与技术研究室

	In situ study on atomic mechanism of melting and freezing of single bismuth nanoparticles
	Li, YX (Li, Yingxuan); Zang, L (Zang, Ling); Jacobs, DL (Jacobs, Daniel L.); Zhao, J (Zhao, Jie); Yue, X (Yue, Xiu); Wang, CY (Wang, Chuanyi)
刊名	NATURE COMMUNICATIONS
	2017
卷号	8 期号:2 页码:14462-14462
通讯作者	Li, YX
英文摘要	Experimental study of the atomic mechanism in melting and freezing processes remains a formidable challenge. We report herein on a unique material system that allows for in situ growth of bismuth nanoparticles from the precursor compound SrBi2Ta2O9 under an electron beam within a high-resolution transmission electron microscope (HRTEM). Simultaneously, the melting and freezing processes within the nanoparticles are triggered and imaged in real time by the HRTEM. The images show atomic-scale evidence for point defect induced melting, and a freezing mechanism mediated by crystallization of an intermediate ordered liquid. During the melting and freezing, the formation of nucleation precursors, nucleation and growth, and the relaxation of the system, are directly observed. Based on these observations, an interaction-relaxation model is developed towards understanding the microscopic mechanism of the phase transitions, highlighting the importance of cooperative multiscale processes.
收录类别	SCI
WOS记录号	WOS:000393812200001
内容类型	期刊论文
源URL	[http://ir.xjipc.cas.cn/handle/365002/4729]
专题	新疆理化技术研究所_环境科学与技术研究室
作者单位	1.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Urumqi 830011, Peoples R China 2.Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Peoples R China 3.Univ Utah, Nano Inst Utah, Salt Lake City, UT 84112 USA 4.Univ Utah, Dept Mat Sci & Engn, Salt Lake City, UT 84112 USA
推荐引用方式 GB/T 7714	Li, YX ,Zang, L ,Jacobs, DL ,et al. In situ study on atomic mechanism of melting and freezing of single bismuth nanoparticles[J]. NATURE COMMUNICATIONS,2017,8(2):14462-14462.
APA	Li, YX ,Zang, L ,Jacobs, DL ,Zhao, J ,Yue, X ,&Wang, CY .(2017).In situ study on atomic mechanism of melting and freezing of single bismuth nanoparticles.NATURE COMMUNICATIONS,8(2),14462-14462.
MLA	Li, YX ,et al."In situ study on atomic mechanism of melting and freezing of single bismuth nanoparticles".NATURE COMMUNICATIONS 8.2(2017):14462-14462.