Nonlinear screening of high-Z grains and the formation of Coulomb lattices in colloidal plasmas

被引:5
作者
Bystrenko, O [1 ]
Zagorodny, A [1 ]
机构
[1] Bogolyubov Inst Theoret Phys, UA-252143 Kiev, Ukraine
关键词
D O I
10.1016/S0375-9601(99)00660-X
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Liquid-solid phase transitions in colloidal plasmas are studied within the Yukawa model with nonlinearly screened effective potentials. It is shown, that there is a minimal charge asymmetry needed for the crystallization of a Coulomb lattice and its value depends on the packing fraction of the colloidal component. The smaller the packing fraction, the higher the charge asymmetry, and, respectively, the stronger the coupling in the colloidal component must be: in order to reach the solid stare. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:72 / 75
页数:4
相关论文
共 14 条
[1]   CHARGE RENORMALIZATION, OSMOTIC-PRESSURE, AND BULK MODULUS OF COLLOIDAL CRYSTALS - THEORY [J].
ALEXANDER, S ;
CHAIKIN, PM ;
GRANT, P ;
MORALES, GJ ;
PINCUS, P ;
HONE, D .
JOURNAL OF CHEMICAL PHYSICS, 1984, 80 (11) :5776-5781
[2]   Effective forces between macroions: The cases of asymmetric macroions and added salt [J].
Allahyarov, E ;
Lowen, H ;
Trigger, S .
PHYSICAL REVIEW E, 1998, 57 (05) :5818-5824
[3]  
[Anonymous], 1948, THEORY STABILITY LYO
[4]  
Bystrenko O., 1998, Condensed Matter Physics, V1, P169
[5]   Critical effects in screening of high-Z impurities in plasmas [J].
Bystrenko, O ;
Zagorodny, A .
PHYSICS LETTERS A, 1999, 255 (4-6) :325-330
[6]   COULOMB LATTICE IN A WEAKLY IONIZED COLLOIDAL PLASMA [J].
CHU, JH ;
LIN, I .
PHYSICA A, 1994, 205 (1-3) :183-190
[7]  
Derjaguin BV., 1941, ACTA PHYSICOCHIM URS, V14, P633, DOI DOI 10.1016/0079-6816(93)90013-L
[8]   THE BCC-FCC-FLUID TRIPLE POINT AS OBTAINED FROM MONTE-CARLO SIMULATIONS OF THE YUKAWA MODEL FOR MONODISPERSE COLLOIDAL SUSPENSIONS [J].
DUPONT, G ;
MOULINASSE, S ;
RYCKAERT, JP ;
BAUS, M .
MOLECULAR PHYSICS, 1993, 79 (02) :453-456
[9]   ABINITIO DESCRIPTION OF COUTERION SCREENING IN COLLOIDAL SUSPENSIONS [J].
LOWEN, H ;
MADDEN, PA ;
HANSEN, JP .
PHYSICAL REVIEW LETTERS, 1992, 68 (07) :1081-1084
[10]   MELTING, FREEZING AND COLLOIDAL SUSPENSIONS [J].
LOWEN, H .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1994, 237 (05) :249-324