SELF-SIMILAR LIGHT-SCATTERING SPECTRA OF BETA RELAXATION NEAR THE LIQUID-GLASS TRANSITION

被引：79

作者：

TAO, NJ ^{[1
]}

LI, G ^{[1
]}

CUMMINS, HZ ^{[1
]}

机构：

[1] CUNY CITY COLL,DEPT PHYS,NEW YORK,NY 10031

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.66.1334

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a light-scattering observation of beta-relaxation in [Ca(NO3)2]0.4-(KNO3)0.6 in the vicinity of the liquid-glass transition. The spectra exhibit self-similarity with I(omega) = A/omega-1-a over a spectral range of nearly 3 orders of magnitude in both the liquid and glass phases. This result agrees with predictions of mode-coupling theories of the glass transition. However, the value of alpha is strongly temperature dependent, a result not predicted by the theory. The spectra are strongly depolarized with a depolarization ratio of approximately 0.75.

引用

收藏

页码：1334 / 1337

页数：4

相关论文

共 33 条

[11] SHEAR VISCOELASTIC RELAXATION OF A NITRATE MELT [J].

GLOVER, GM ;

MATHESON, AJ .

TRANSACTIONS OF THE FARADAY SOCIETY, 1971, 67 (583) :1960-&

[12] THE GLASS-TRANSITION SINGULARITY [J].

GOTZE, W ;

SJOGREN, L .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1987, 65 (04) :415-427

[13] ALPHA-RELAXATION NEAR THE LIQUID GLASS-TRANSITION [J].

GOTZE, W ;

SJOGREN, L .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1987, 20 (07) :879-894

[14] SHEAR-WAVES THROUGH THE GLASS-LIQUID TRANSFORMATION [J].

GRIMSDITCH, M ;

BHADRA, R ;

TORELL, LM .

PHYSICAL REVIEW LETTERS, 1989, 62 (22) :2616-2619

[15] ELECTRICAL RELAXATION IN A GLASS-FORMING MOLTEN-SALT [J].

HOWELL, FS ;

BOSE, RA ;

MACEDO, PB ;

MOYNIHAN, CT .

JOURNAL OF PHYSICAL CHEMISTRY, 1974, 78 (06) :639-648

[16] VISCOUS LIQUIDS AND GLASS TRANSITION .3. SECONDARY RELAXATIONS IN ALIPHATIC ALCOHOLS AND OTHER NONRIGID MOLECULES [J].

JOHARI, GP ;

GOLDSTEIN, M .

JOURNAL OF CHEMICAL PHYSICS, 1971, 55 (09) :4245-+

[17] MODE-COUPLING THEORY OF THE GLASS-TRANSITION [J].

KIRKPATRICK, TR .

PHYSICAL REVIEW A, 1985, 31 (02) :939-944

[18] OBSERVATION OF SCALING BEHAVIOR OF DYNAMIC CORRELATIONS NEAR LIQUID-GLASS TRANSITION [J].

KNAAK, W ;

MEZEI, F ;

FARAGO, B .

EUROPHYSICS LETTERS, 1988, 7 (06) :529-536

[19] ALPHA-RELAXATION OF A SIMPLE MOLTEN-SALT NEAR THE GLASS-TRANSITION [J].

KRIEGER, U ;

BOSSE, J .

PHYSICAL REVIEW LETTERS, 1987, 59 (14) :1601-1603

[20] DYNAMICAL MODEL OF THE LIQUID-GLASS TRANSITION [J].

LEUTHEUSSER, E .

PHYSICAL REVIEW A, 1984, 29 (05) :2765-2773

← 1 2 3 4 →