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He, BJ; Wang, YT; Wang, YT (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Wang, YT (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China.
Moderate point: Balanced entropy and enthalpy contributions in soft matter
发表期刊CHINESE PHYSICS B
语种英语
关键词Moderate Point Balanced Entropy Enthalpy Contribution
摘要Various soft materials share some common features, such as significant entropic effect, large fluctuations, sensitivity to thermodynamic conditions, and mesoscopic characteristic spatial and temporal scales. However, no quantitative definitions have yet been provided for soft matter, and the intrinsic mechanisms leading to their common features are unclear. In this work, from the viewpoint of statistical mechanics, we show that soft matter works in the vicinity of a specific thermodynamic state named moderate point, at which entropy and enthalpy contributions among substates along a certain order parameter are well balanced or have a minimal difference. Around the moderate point, the order parameter fluctuation, the associated response function, and the spatial correlation length maximize, which explains the large fluctuation, the sensitivity to thermodynamic conditions, and mesoscopic spatial and temporal scales of soft matter, respectively. Possible applications to switching chemical bonds or allosteric biomachines determining their best working temperatures are also briefly discussed.
2017
卷号26期号:3页码:30506
学科领域Physics
DOIhttp://dx.doi.org/10.1088/1674-1056/26/3/030506
项目资助者National Basic Research Program of China [2013CB932804] ; National Basic Research Program of China [2013CB932804] ; National Basic Research Program of China [2013CB932804] ; National Basic Research Program of China [2013CB932804] ; National Natural Science Foundation of China [11274319, 11421063] ; National Natural Science Foundation of China [11274319, 11421063] ; National Natural Science Foundation of China [11274319, 11421063] ; National Natural Science Foundation of China [11274319, 11421063]
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22115
专题理论物理所科研产出_SCI论文
通讯作者Wang, YT (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Wang, YT (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China.
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He, BJ,Wang, YT,Wang, YT ,et al. Moderate point: Balanced entropy and enthalpy contributions in soft matter[J]. CHINESE PHYSICS B,2017,26(3):30506.
APA He, BJ,Wang, YT,Wang, YT ,&Wang, YT .(2017).Moderate point: Balanced entropy and enthalpy contributions in soft matter.CHINESE PHYSICS B,26(3),30506.
MLA He, BJ,et al."Moderate point: Balanced entropy and enthalpy contributions in soft matter".CHINESE PHYSICS B 26.3(2017):30506.
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