Three-dimensional structure of a string-fluid complex plasma

被引：19

作者：

Pustylnik, M. Y. ^{[1
]}

Klumov, B. ^{[1
,2
,3
]}

Rubin-Zuzic, M. ^{[1
]}

Lipaev, A. M. ^{[2
,3
]}

Nosenko, V ^{[1
]}

Erdle, D. ^{[1
]}

Usachev, A. D. ^{[2
]}

Zobnin, A., V ^{[2
]}

Molotkov, V., I ^{[2
]}

Joyce, G. ^{[4
]}

Thomas, H. M. ^{[1
]}

Thoma, M. H. ^{[5
]}

Petrov, O. F. ^{[2
,3
]}

Fortov, V. E. ^{[2
]}

Kononenko, O. ^{[6
]}

机构：

[1] Deutsch Zentrum Luft & Raumfahrt DLR, Inst Mat Phys Weltraum, Munchener Str 20, D-82234 Wessling, Germany

[2] Russian Acad Sci, Inst High Temp, Izhorskaya 13-19, Moscow 125412, Russia

[3] Moscow Inst Phys & Technol, Inst Sky Lane 9, Dolgoprudnyi 141700, Moscow Region, Russia

[4] Naval Res Lab, Code 7600,4555 Overlook Ave SW, Washington, DC 20375 USA

[5] Justus Liebig Univ Giessen, Phys Inst 1, Heinrich Buff Ring 16, D-35392 Giessen, Germany

[6] Gagarin Res & Test Cosmonaut Training Ctr, Star City 141160, Moscow Region, Russia

来源：

PHYSICAL REVIEW RESEARCH | 2020年 / 2卷 / 03期

基金：

俄罗斯科学基金会;

关键词：

BOND-ORIENTATIONAL ORDER;

D O I：

10.1103/PhysRevResearch.2.033314

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Three-dimensional structure of complex (dusty) plasmas was investigated under long-term microgravity conditions in the Plasmakristall-4 facility on the International Space Station. The microparticle suspensions were confined in a polarity-switched dc discharge. The experimental results were compared to the results of the molecular dynamics simulations with the interparticle interaction potential represented as a superposition of isotropic Yukawa and anisotropic quadrupole terms. Both simulated and experimental data exhibited qualitatively similar structural features, indicating the bulk liquid-like order with the inclusion of solid-like strings aligned with the axial electric field. Individual strings were identified and their size spectrum was calculated. The decay rate of the size spectrum was found to decrease with the enhancement of string-like structural features.

引用

页数：7

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