气候变化领域集成服务门户(CCPortal): Reversible disorder-order transitions in atomic crystal nucleation

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DOI	10.1126/science.aaz7555
	Reversible disorder-order transitions in atomic crystal nucleation
	Jeon S.; Heo T.; Hwang S.-Y.; Ciston J.; Bustillo K.C.; Reed B.W.; Ham J.; Kang S.; Kim S.; Lim J.; Lim K.; Kim J.S.; Kang M.-H.; Bloom R.S.; Hong S.; Kim K.; Zettl A.; Kim W.Y.; Ercius P.; Park J.; Lee W.C.
发表日期	2021
ISSN	0036-8075
卷号	371 期号:6528
英文摘要	Nucleation in atomic crystallization remains poorly understood, despite advances in classical nucleation theory. The nucleation process has been described to involve a nonclassical mechanism that includes a spontaneous transition from disordered to crystalline states, but a detailed understanding of dynamics requires further investigation. In situ electron microscopy of heterogeneous nucleation of individual gold nanocrystals with millisecond temporal resolution shows that the early stage of atomic crystallization proceeds through dynamic structural fluctuations between disordered and crystalline states, rather than through a single irreversible transition. Our experimental and theoretical analyses support the idea that structural fluctuations originate from size-dependent thermodynamic stability of the two states in atomic clusters. These findings, based on dynamics in a real atomic system, reshape and improve our understanding of nucleation mechanisms in atomic crystallization. © 2021 American Association for the Advancement of Science. All rights reserved.
英文关键词	gold nanocrystal; gold nanoparticle; nanocrystal; unclassified drug; crystal structure; crystallization; electron microscopy; experimental study; nucleation; Article; atom; controlled study; crystal; crystal structure; crystallization; electron beam; electron microscopy; energy; noise; nucleation; particle size; phase transition; physical phenomena; thermodynamics; X ray diffraction
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244160
作者单位	Department of Mechanical Engineering, BK21 FOUR ERICA-ACE Center, Hanyang University, Ansan, Gyeonggi, 15588, South Korea; Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea; National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA 94720, United States; Integrated Dynamic Electron Solutions, Inc., Pleasanton, CA 94588, United States; School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, South Korea; Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, South Korea; Department of Physics, Yonsei University, Seoul, 03722, South Korea; Center for Nanomedicine, IBS, Seoul, 03722, South Korea; Department of Physics, University of California, Berkeley, CA 94720, United States; Materials Sciences Division, LBNL, Berkeley, CA 94720, United States; Kavli Energy NanoSciences Institute, Berkeley,...
推荐引用方式 GB/T 7714	Jeon S.,Heo T.,Hwang S.-Y.,et al. Reversible disorder-order transitions in atomic crystal nucleation[J],2021,371(6528).
APA	Jeon S..,Heo T..,Hwang S.-Y..,Ciston J..,Bustillo K.C..,...&Lee W.C..(2021).Reversible disorder-order transitions in atomic crystal nucleation.Science,371(6528).
MLA	Jeon S.,et al."Reversible disorder-order transitions in atomic crystal nucleation".Science 371.6528(2021).