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Conservation of the Stokes-Einstein relation in supercooled water

文献类型:期刊论文

作者Ren, Gan; Wang, Yanting1,2
刊名PHYSICAL CHEMISTRY CHEMICAL PHYSICS
出版日期2021
卷号23期号:43页码:24541-24544
ISSN号1463-9076
关键词DYNAMICS TEMPERATURE VISCOSITY TRANSITION DIFFUSION BREAKDOWN LIQUIDS GROMACS MODEL
DOI10.1039/d1cp03972e
英文摘要The Stokes-Einstein (SE) relation is commonly regarded as being breakdown in supercooled water. However, this conclusion is drawn by testing the validity of some variants of the SE relation rather than its original form, and it appears conflicting with the fact that supercooled water is in its local equilibrium. In this work, we show by molecular dynamics simulations that the Stokes-Einstein relation is indeed conserved in supercooled water. The inconsistency between the original SE relation and its variants comes from two facts: (1) the substitutes of the shear viscosity in the SE variants are only approximate relations; and (2) the effective hydrodynamic radius actually decreases with decreasing temperature, instead of being a constant as assumed in the SE variants.
学科主题Chemistry ; Physics
语种英语
源URL[http://ir.itp.ac.cn/handle/311006/27599]  
专题理论物理研究所_理论物理所1978-2010年知识产出
作者单位1.Civil Aviat Flight Univ China, Sch Sci, Guanghan 628307, Peoples R China
2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Ren, Gan,Wang, Yanting. Conservation of the Stokes-Einstein relation in supercooled water[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2021,23(43):24541-24544.
APA Ren, Gan,&Wang, Yanting.(2021).Conservation of the Stokes-Einstein relation in supercooled water.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,23(43),24541-24544.
MLA Ren, Gan,et al."Conservation of the Stokes-Einstein relation in supercooled water".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 23.43(2021):24541-24544.

入库方式: OAI收割

来源:理论物理研究所

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