NATURE OF CROSSOVER BETWEEN ISING-LIKE AND MEAN-FIELD CRITICAL-BEHAVIOR IN FLUIDS AND FLUID MIXTURES

被引：137

作者：

ANISIMOV, MA ^{[1
]}

POVODYREV, AA ^{[1
]}

KULIKOV, VD ^{[1
]}

SENGERS, JV ^{[1
]}

机构：

[1] UNIV MARYLAND, DEPT CHEM ENGN, COLLEGE PK, MD 20742 USA

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.75.3146

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An analysis of experimental data for the susceptibility of fluids and of liquid mixtures in the critical region has been performed to elucidate the character of the nonasymptotic critical behavior. While fluids and fluid mixtures exhibit an ultimate crossover to Ising-like asymptotic behavior, the effective susceptibility exponent gamma(eff) approaches the universal value gamma similar or equal to 1.24 either from above (A) or from below (B). We conclude that simple fluids belong to type B, whereas more complex systems may belong to type A and show a sharper nonmonotonic crossover from mean-field to Ising-like behavior.

引用

页码：3146 / 3149

页数：4

共 41 条

[1] CROSSOVER BETWEEN VAPOR-LIQUID AND CONSOLUTE CRITICAL PHENOMENA [J].

ANISIMOV, MA ;

GORODETSKII, EE ;

KULIKOV, VD ;

SENGERS, JV .

PHYSICAL REVIEW E, 1995, 51 (02) :1199-1215

[2] CROSSOVER APPROACH TO GLOBAL CRITICAL PHENOMENA IN FLUIDS [J].

ANISIMOV, MA ;

KISELEV, SB ;

SENGERS, JV ;

TANG, S .

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 1992, 188 (04) :487-525

[3]

[Anonymous], 1979, FLUCTUATION THEORY P

[4] NONASYMPTOTIC CRITICAL-BEHAVIOR FROM FIELD-THEORY AT D=3 - THE DISORDERED-PHASE CASE [J].

BAGNULS, C ;

BERVILLIER, C .

PHYSICAL REVIEW B, 1985, 32 (11) :7209-7231

[5] DESCRIBING ACTUAL CRITICAL-BEHAVIOR FROM FIELD-THEORY - A DELICATE MATTER [J].

BAGNULS, C ;

BERVILLIER, C .

PHYSICS LETTERS A, 1994, 195 (02) :163-170

[6]

Belyakov M. Yu., 1993, Journal of Experimental and Theoretical Physics, V77, P279

[7] CROSSOVER-BEHAVIOR OF THE SUSCEPTIBILITY AND THE SPECIFIC-HEAT NEAR A 2ND-ORDER PHASE-TRANSITION [J].

BELYAKOV, MY ;

KISELEV, SB .

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 1992, 190 (1-2) :75-94

[8] CORRELATION-FUNCTION NEAR THE CRITICAL MIXING POINT OF A BINARY-LIQUID [J].

CHANG, RF ;

BURSTYN, H ;

SENGERS, JV .

PHYSICAL REVIEW A, 1979, 19 (02) :866-882

[9] CROSSOVER FROM SINGULAR CRITICAL TO REGULAR CLASSICAL THERMODYNAMIC BEHAVIOR OF FLUIDS [J].

CHEN, ZY ;

ALBRIGHT, PC ;

SENGERS, JV .

PHYSICAL REVIEW A, 1990, 41 (06) :3161-3177

[10] GLOBAL THERMODYNAMIC BEHAVIOR OF FLUIDS IN THE CRITICAL REGION [J].

CHEN, ZY ;

ABBACI, A ;

TANG, S ;

SENGERS, JV .

PHYSICAL REVIEW A, 1990, 42 (08) :4470-4484

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