Dynamics-Entropy Relationship in Metallic Glasses

doi:10.1021/acs.jpclett.3c03530

IMECH-IR > 非线性力学国家重点实验室

	Dynamics-Entropy Relationship in Metallic Glasses
	Cao LL(曹琳莉); Wang YJ(王云江)
通讯作者	Wang, Yun-Jiang(yjwang@imech.ac.cn)
发表期刊	JOURNAL OF PHYSICAL CHEMISTRY LETTERS
	2024-01-17
卷号	15 期号:3 页码:811-816
ISSN	1948-7185
摘要	Establishing a robust quantitative correlation between thermodynamics and dynamics in amorphous matter remains a significant challenge in condensed matter physics. Although the classical Adam-Gibbs relationship represents a pivotal step in this direction and the correlation between relaxation time and configurational entropy has been partially verified in simple liquids, this quantitative link has yet to be tested in realistic glass-forming systems where complex many-body interactions are present. Here we conduct free energy samplings and lattice dynamics analysis to distinguish vibrational entropy from configurational entropy in a realistic Cu-Zr model of a metallic glass. Our calculations unveil a power-law relationship (with a substantial exponent of similar to 3) between the logarithmic relaxation time and configurational entropy, surpassing the linear prediction of the original Adam-Gibbs relationship. This nonlinear entropy driven relaxation time variation likely originates from anisotropic nature of atomic many-body interactions, suggesting that factors beyond thermodynamics contribute to the glass transition phenomenon.
DOI	10.1021/acs.jpclett.3c03530
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001151470700001
关键词[WOS]	CONFIGURATIONAL ENTROPY ; TEMPERATURE-DEPENDENCE ; MOLECULAR-DYNAMICS ; VISCOUS-LIQUIDS ; TRANSITION ; VISCOSITY ; FRAGILITY ; MODEL
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Atomic, Molecular & Chemical
资助项目	National Natural Science Foundation of China[12072344] ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
项目资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
论文分区	一类
力学所作者排名	1
RpAuthor	Wang, Yun-Jiang
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/94196
专题	非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Cao LL,Wang YJ. Dynamics-Entropy Relationship in Metallic Glasses[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2024,15,3,:811-816.
APA	曹琳莉,&王云江.(2024).Dynamics-Entropy Relationship in Metallic Glasses.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,15(3),811-816.
MLA	曹琳莉,et al."Dynamics-Entropy Relationship in Metallic Glasses".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 15.3(2024):811-816.