Effect of an external magnetic field on a critical point for phase separation in a dusty plasma

被引：8

作者：

Avinash, K. ^{[1
,2
]}

Shukla, P. K. ^{[3
,4
]}

Merlino, R. L. ^{[5
]}

机构：

[1] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India

[2] Univ Alabama, Ctr Space Plasma & Aeron Res, Huntsville, AL 35899 USA

[3] Ruhr Univ Bochum, Fac Phys & Astron, Int Ctr Adv Studies Phys Sci, D-44780 Bochum, Germany

[4] Univ Calif San Diego, Dept Mech & Aerosp Engn, La Jolla, CA 92093 USA

[5] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA

来源：

PHYSICA SCRIPTA | 2012年 / 86卷 / 03期

关键词：

Dust - Magnetic fields - Magnetoplasma - Semiconductor plasmas - Plasma theory;

D O I：

10.1088/0031-8949/86/03/035504

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effect of an external magnetic field on a critical point for phase transitions in a dusty plasma is investigated. It is shown that the ambient magnetic field increases the effective hard core radius of dust particles, which, in turn, would affect a critical point in terms of the Coulomb coupling parameter and the ratio between the inter-dust grain spacing and the dusty plasma Debye radius. The present result may be useful in understanding the phenomenon of liquid-vapor phase transitions in laboratory dusty plasmas that are held in an external magnetic field.

引用

页数：3

共 10 条

[1] Mean-field theory of critical phenomenon for mutually repelling particles in complex plasmas
Avinash, K.
[J]. PHYSICAL REVIEW LETTERS, 2007, 98 (09)
[2] Vapour-liquid phase transition in dusty plasmas
Avinash, K
Shukla, PK
[J]. PHYSICS LETTERS A, 1999, 255 (1-2) : 82 - 88
[3] Critical point in complex plasmas
Khrapak, SA
Morfill, GE
Ivlev, AV
Thomas, HM
Beysens, DA
Zappoli, B
Fortov, VE
Lipaev, AM
Molotkov, VI
[J]. PHYSICAL REVIEW LETTERS, 2006, 96 (01)
[4] Particle charge in the bulk of gas discharges -: art. no. 016406
Khrapak, SA
Ratynskaia, SV
Zobnin, AV
Usachev, AD
Yaroshenko, VV
Thoma, MH
Kretschmer, M
Höfner, H
Morfill, GE
Petrov, OF
Fortov, VE
[J]. PHYSICAL REVIEW E, 2005, 72 (01):
[5] Landau L D, 1978, STAT PHYSICS, P216
[6] On the Shukla-Nambu-Salimullah potential in magnetized plasmas
Nambu, M
Nitta, H
[J]. PHYSICS LETTERS A, 2002, 300 (01) : 82 - 85
[7] Modification of the shielding and wake potentials in a streaming dusty magnetoplasma
Salimullah, M
Shukla, PK
Nambu, M
Nitta, H
Ishihara, O
Rizwan, AM
[J]. PHYSICS OF PLASMAS, 2003, 10 (08) : 3047 - 3050
[8] Colloquium: Fundamentals of dust-plasma interactions
Shukla, P. K.
Eliasson, B.
[J]. REVIEWS OF MODERN PHYSICS, 2009, 81 (01) : 25 - 44
[9] DUST ION-ACOUSTIC-WAVE
SHUKLA, PK
SILIN, VP
[J]. PHYSICA SCRIPTA, 1992, 45 (05): : 508 - 508
[10] Thomas Jr E, 2012, COMMUNICATION

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