Coulomb structures of charged macroparticles in static magnetic traps at cryogenic temperatures

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• 作者：M. M. Vasiliev ; O. F. Petrov ; K. B. Statsenko
• 刊名：JETP Letters
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：102
• 期：11
• 页码：771-774
• 全文大小：1,286 KB
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• 作者单位：M. M. Vasiliev (1)
  O. F. Petrov (1)
  K. B. Statsenko (1)
  
  1. Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, 125412, Russia
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Elementary Particles and Nuclei
  Atoms, Molecules, Clusters and Plasmas
  Solid State Physics and Spectroscopy
  Russian Library of Science
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1090-6487

文摘

Electrically charged (up to 107 e) macroscopic superconducting particles with sizes in the micrometer range confined in a static magnetic trap in liquid nitrogen and in nitrogen vapor at temperatures of 77–91 K are observed experimentally. The macroparticles with sizes up to 60 μm levitate in a nonuniform static magnetic field B ~ 2500 G. The formation of strongly correlated structures comprising as many as ~103 particles is reported. The average particle distance in these structures amounts to 475 μm. The coupling parameter and the Lindemann parameter of these structures are estimated to be ~107 and ~0.03, respectively, which is characteristic of strongly correlated crystalline or glasslike structures.