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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); Li, YX
2017
Source PublicationNATURE COMMUNICATIONS
Volume8Issue:2Pages:14462-14462
AbstractExperimental 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.
DOI10.1038/ncomms14462
Indexed BySCI
WOS IDWOS:000393812200001
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Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/4729
Collection环境科学与技术研究室
Corresponding AuthorLi, YX
Affiliation1.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
Recommended Citation
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 .,...&Li, YX.(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.
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