Soluble Model Fluids with Complete Scaling and Yang-Yang Features

被引：24

作者：

Cerdeirina, Claudio A. ^{[1
]}

Orkoulas, Gerassimos ^{[2
]}

Fisher, Michael E. ^{[3
]}

机构：

[1] Univ Vigo, Dept Fis Aplicada, Campus Agua, Orense 32004, Spain

[2] Widener Univ, Sch Engn, Chester, PA 19013 USA

[3] Univ Maryland, Inst Phys Sci & Technol, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 116卷 / 04期

基金：

美国国家科学基金会;

关键词：

SUPER-EXCHANGE ANTIFERROMAGNET; COEXISTENCE-CURVE DIAMETERS; CRITICAL-POINT; LATTICE STATISTICS; SUPERCOOLED WATER; CRITICAL-BEHAVIOR; MAGNETIC FIELD; GLASSY WATER; LIQUID; TRANSITIONS;

D O I：

10.1103/PhysRevLett.116.040601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Yang-Yang (YY) and singular diameter critical anomalies arise in exactly soluble compressible cell gas (CCG) models that obey complete scaling with pressure mixing. Thus, on the critical isochore rho = rho(c), (C) over tilde (mu):= -Td(2)mu/dT(2) diverges as vertical bar t vertical bar(-alpha) when t proportional to T - T-c -> 0(-) while rho(d) - rho(c) similar to vertical bar t vertical bar(2 beta) where rho(d)(T) = 1/2 [rho(liq) + rho(gas)]. When the discrete local CCG cell volumes fluctuate freely, the YY ratio R-mu = (C) over tilde (mu)/C-V may take any value -infinity < R-mu < 1/2 but "anticorrelated" free volumes are needed for R-mu > 0. More general decorated CCGs, including "hydrogen bonding" water models, illuminate energy-volume coupling as relevant to R-mu.

引用

页数：5

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