CRYSTALLINE BILAYERS ON THE SURFACE OF MOLTEN ALCOHOL

被引：69

作者：

DEUTSCH, M

WU, XZ

SIROTA, EB

SINHA, SK

OCKO, BM

MAGNUSSEN, OM

机构：

[1] EXXON RES & ENGN CO,ANNANDALE,NJ 08801

[2] BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973

来源：

EUROPHYSICS LETTERS | 1995年 / 30卷 / 05期

关键词：

D O I：

10.1209/0295-5075/30/5/006

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Surface freezing is discovered in normal alcohol melts and studied using surface X-ray scattering techniques. A single crystalline bilayer is formed on the surface, at temperatures up to 1 degrees C above the bulk freezing temperature. The single bilayer persists down to bulk freezing. It is hexagonally packed, and the molecules are vertical for short chains and tilted for long ones. The two layers comprising the bilayer are shifted relatively in the next-nearest-neighbor direction. The structural details of the layer, its range of existence in temperature and chain length, its relation to Langmuir films and to the recently discovered surface crystallization in alkane melts are discussed.

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页码：283 / 288

页数：6

相关论文

共 23 条

[1] SMECTIC-A ORDER AT THE SURFACE OF A NEMATIC LIQUID-CRYSTAL - SYNCHROTRON X-RAY-DIFFRACTION [J].

ALSNIELSEN, J ;

CHRISTENSEN, F ;

PERSHAN, PS .

PHYSICAL REVIEW LETTERS, 1982, 48 (16) :1107-1110

[2]

ALSNIELSEN J, 1989, PHASE TRANSITIONS SO, P245

[3] CAPILLARY WAVES ON THE SURFACE OF SIMPLE LIQUIDS MEASURED BY X-RAY REFLECTIVITY [J].

BRASLAU, A ;

PERSHAN, PS ;

SWISLOW, G ;

OCKO, BM ;

ALSNIELSEN, J .

PHYSICAL REVIEW A, 1988, 38 (05) :2457-2470

[4] SURFACE MELTING [J].

DASH, JG .

CONTEMPORARY PHYSICS, 1989, 30 (02) :89-100

[5] WETTING - STATICS AND DYNAMICS [J].

DEGENNES, PG .

REVIEWS OF MODERN PHYSICS, 1985, 57 (03) :827-863

[6] SURFACE-INDUCED PHASE-TRANSITION IN NORMAL ALKANE FLUIDS [J].

EARNSHAW, JC ;

HUGHES, CJ .

PHYSICAL REVIEW A, 1992, 46 (08) :R4494-R4496

[7] APPLICATION OF THE THEORY OF DISPERSION FORCES TO THE SURFACE MELTING OF ICE [J].

ELBAUM, M ;

SCHICK, M .

PHYSICAL REVIEW LETTERS, 1991, 66 (13) :1713-1716

[8] LIQUID VAPOR INTERFACES OF ALKANE OLIGOMERS - STRUCTURE AND THERMODYNAMICS FROM MOLECULAR-DYNAMICS SIMULATIONS OF CHEMICALLY REALISTIC MODELS [J].

HARRIS, JG .

JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (12) :5077-5086

[9] CRYSTAL-STRUCTURES OF SELF-AGGREGATES OF INSOLUBLE ALIPHATIC AMPHIPHILIC MOLECULES AT THE AIR-WATER-INTERFACE - AN X-RAY SYNCHROTRON STUDY [J].

JACQUEMAIN, D ;

LEVEILLER, F ;

WEINBACH, SP ;

LAHAV, M ;

LEISEROWITZ, L ;

KJAER, K ;

ALSNIELSEN, J .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (20) :7684-7691

[10] PHASE-DIAGRAM OF A LIPID MONOLAYER ON THE SURFACE OF WATER [J].

LIN, B ;

SHIH, MC ;

BOHANON, TM ;

ICE, GE ;

DUTTA, P .

PHYSICAL REVIEW LETTERS, 1990, 65 (02) :191-194