Magnetizing a Complex Plasma without a Magnetic Field

被引:62
作者
Kaehlert, H. [1 ]
Carstensen, J. [2 ]
Bonitz, M. [3 ]
Loewen, H. [1 ]
Greiner, F. [2 ]
Piel, A. [2 ]
机构
[1] Univ Dusseldorf, Inst Theoret Phys Weiche Materie 2, D-40225 Dusseldorf, Germany
[2] Univ Kiel, Inst Expt & Angew Phys, D-24098 Kiel, Germany
[3] Univ Kiel, Inst Theoret Phys & Astrophys, D-24098 Kiel, Germany
关键词
CRYSTAL; CRYSTALLIZATION; ELECTRONS;
D O I
10.1103/PhysRevLett.109.155003
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We propose and demonstrate a concept that mimics the magnetization of the heavy dust particles in a complex plasma while leaving the properties of the light species practically unaffected. It makes use of the frictional coupling between a complex plasma and the neutral gas, which allows us to transfer angular momentum from a rotating gas column to a well-controlled rotation of the dust cloud. This induces a Coriolis force that acts exactly as the Lorentz force in a magnetic field. Experimental normal mode measurements for a small dust cluster with four particles show excellent agreement with theoretical predictions for a magnetized plasma.
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页数:5
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