Direct Observation of Dynamics of Single Spinning Dust Grains in Weakly Magnetized Complex Plasma

被引：11

作者：

Dzlieva, E. S. ^{[1
]}

Karasev, V. Yu. ^{[1
]}

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

机构：

[1] St Petersburg State Univ, Inst Phys, St Petersburg 198504, Russia

[2] Russian Acad Sci, Joint Inst High Temp, Inst High Energy Dens, Moscow 125412, Russia

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2012年 / 114卷 / 01期

关键词：

FINE PARTICLES; ROTATION; FIELD;

D O I：

10.1134/S1063776111150167

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The rotational dynamics of single dust grains in a weak magnetic field is investigated on a kinetic level. Experiments reveal spin-up of spherical dust grains and alignment of their magnetic moments parallel to the magnetic induction vector. The angular velocity of spinning prolate grains varies as magnetic induction increases to 250 G. Spinning dust grains are found to flip over only when the magnetic field magnitude is changing. The results demonstrate that dusty plasma has paramagnetic properties. Qualitative interpretations are proposed to explain newly discovered phenomena.

引用

页码：167 / 171

页数：5

共 23 条

[1]

[Anonymous], 2010, Complex and Dusty Plasmas: From Laboratory to Space

[2] Dusty Plasma Structures in Magnetic DC Discharges [J].

D'yachkov, L. G. ;

Petrov, O. F. ;

Fortov, V. E. .

CONTRIBUTIONS TO PLASMA PHYSICS, 2009, 49 (03) :134-147

[3] On the possibility of phase transitions in dusty plasma structures in a glow discharge under the action of a magnetic field [J].

Dzlieva, E. S. ;

Ivanov, A. Yu. ;

Karasev, V. Yu. ;

Eikhval'd, A. I. .

OPTICS AND SPECTROSCOPY, 2006, 101 (05) :816-821

[4]

Dzlieva E. S., 2010, P 3 INT C DUST PLASM, P37

[5] The effect of a longitudinal magnetic field on the plasma-dust structures in strata in a glow discharge [J].

Dzlieva, ES ;

Karasev, VY ;

Éikhval'd, AI .

OPTICS AND SPECTROSCOPY, 2005, 98 (04) :569-573

[6] Large-amplitude dust waves excited by the gas-dynamic impact in a dc glow discharge plasma [J].

Fortov, VE ;

Petrov, OF ;

Molotkov, VI ;

Poustylnik, MY ;

Torchinsky, VM ;

Khrapak, AG ;

Chernyshev, AV .

PHYSICAL REVIEW E, 2004, 69 (01) :5

[7] Dusty plasmas [J].

Fortov, VE ;

Khrapak, AG ;

Khrapak, SA ;

Molotkov, VI ;

Petrov, OF .

PHYSICS-USPEKHI, 2004, 47 (05) :447-492

[8] Shock wave formation in a dc glow discharge dusty plasma [J].

Fortov, VE ;

Petrov, OF ;

Molotkov, VI ;

Poustylnik, MY ;

Torchinsky, VM ;

Naumkin, VN ;

Khrapak, AG .

PHYSICAL REVIEW E, 2005, 71 (03)

[9] On the rotation of a dust particulate in an ion flow in a magnetic field [J].

Ishihara, O ;

Sato, N .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 2001, 29 (02) :179-181

[10] Rotational motion of dusty structures in glow discharge in longitudinal magnetic field [J].

Karasev, V. Yu ;

Dzlieva, E. S. ;

Ivanov, A. Yu. ;

Eikhvald, A. I. .

PHYSICAL REVIEW E, 2006, 74 (06)

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