Second-order-derivative analysis of structural relaxation time in the elastic model of glass-forming liquids

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Second-order-derivative analysis of structural relaxation time in the elastic model of glass-forming liquids. / Zykova, V. A.; Adichtchev, S. V.; Novikov, V. N. et al.

In: Physical Review E, Vol. 101, No. 5, 052610, 01.05.2020.

Research output: Contribution to journal › Article › peer-review

Author

Zykova, V. A. ; Adichtchev, S. V. ; Novikov, V. N. et al. / Second-order-derivative analysis of structural relaxation time in the elastic model of glass-forming liquids. In: Physical Review E. 2020 ; Vol. 101, No. 5.

BibTeX

@article{51a3eeb4694a4f78b557bacd66cf9e88,

title = "Second-order-derivative analysis of structural relaxation time in the elastic model of glass-forming liquids",

abstract = "Recently it was shown [V. N. Novikov and A. P. Sokolov, Phys. Rev. E 92, 062304 (2015)10.1103/PhysRevE.92.062304] that the second derivative with respect to inverse temperature of the structural relaxation time in some supercooled molecular liquids has a sharp maximum. It marks the point at which the apparent activation energy begins to saturate with decreasing temperature. The elastic model of glass-forming liquids expresses the temperature dependence of the structural relaxation time through that of the shear modulus. In this paper, we test whether this model is able to predict the maximum of the second derivative. We confirm its presence in the elastic model by analyzing the temperature dependence of the Brillouin light scattering in salol. This is a very subtle feature of the temperature dependence, which is greatly enhanced when taking derivatives. Its presence in the Brillouin data provides strong support to the elastic model of glass-forming liquids.",

keywords = "VISCOUS-FLOW, DIELECTRIC-RELAXATION, SUPERCOOLED LIQUIDS, TEMPERATURE, VISCOSITY, DYNAMICS, TRANSITION, BEHAVIOR",

author = "Zykova, {V. A.} and Adichtchev, {S. V.} and Novikov, {V. N.} and Surovtsev, {N. V.}",

year = "2020",

month = may,

day = "1",

doi = "10.1103/PhysRevE.101.052610",

language = "English",

volume = "101",

journal = "Physical Review E",

issn = "2470-0045",

publisher = "American Physical Society",

number = "5",

}

RIS

TY - JOUR

T1 - Second-order-derivative analysis of structural relaxation time in the elastic model of glass-forming liquids

AU - Zykova, V. A.

AU - Adichtchev, S. V.

AU - Novikov, V. N.

AU - Surovtsev, N. V.

PY - 2020/5/1

Y1 - 2020/5/1

N2 - Recently it was shown [V. N. Novikov and A. P. Sokolov, Phys. Rev. E 92, 062304 (2015)10.1103/PhysRevE.92.062304] that the second derivative with respect to inverse temperature of the structural relaxation time in some supercooled molecular liquids has a sharp maximum. It marks the point at which the apparent activation energy begins to saturate with decreasing temperature. The elastic model of glass-forming liquids expresses the temperature dependence of the structural relaxation time through that of the shear modulus. In this paper, we test whether this model is able to predict the maximum of the second derivative. We confirm its presence in the elastic model by analyzing the temperature dependence of the Brillouin light scattering in salol. This is a very subtle feature of the temperature dependence, which is greatly enhanced when taking derivatives. Its presence in the Brillouin data provides strong support to the elastic model of glass-forming liquids.

AB - Recently it was shown [V. N. Novikov and A. P. Sokolov, Phys. Rev. E 92, 062304 (2015)10.1103/PhysRevE.92.062304] that the second derivative with respect to inverse temperature of the structural relaxation time in some supercooled molecular liquids has a sharp maximum. It marks the point at which the apparent activation energy begins to saturate with decreasing temperature. The elastic model of glass-forming liquids expresses the temperature dependence of the structural relaxation time through that of the shear modulus. In this paper, we test whether this model is able to predict the maximum of the second derivative. We confirm its presence in the elastic model by analyzing the temperature dependence of the Brillouin light scattering in salol. This is a very subtle feature of the temperature dependence, which is greatly enhanced when taking derivatives. Its presence in the Brillouin data provides strong support to the elastic model of glass-forming liquids.

KW - VISCOUS-FLOW

KW - DIELECTRIC-RELAXATION

KW - SUPERCOOLED LIQUIDS

KW - TEMPERATURE

KW - VISCOSITY

KW - DYNAMICS

KW - TRANSITION

KW - BEHAVIOR

UR - http://www.scopus.com/inward/record.url?scp=85086309716&partnerID=8YFLogxK

U2 - 10.1103/PhysRevE.101.052610

DO - 10.1103/PhysRevE.101.052610

M3 - Article

C2 - 32575277

AN - SCOPUS:85086309716

VL - 101

JO - Physical Review E

JF - Physical Review E

SN - 2470-0045

IS - 5

M1 - 052610

ER -

ID: 24516834