Methodological notes

On melting criteria for complex plasma

 a, b
a Max-Planck Institute for Extraterrestrial Physics, Postfach 1312, Giessenbechstrasse 85748 , Garching, 85741, Germany
b Joint Institute for High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13/19, Moscow, 127412, Russian Federation

The present paper considers melting criteria for a plasma crystal discovered in dust plasma in 1994. Separate discussions are devoted to three-dimensional (3D) and two-dimensional (2D) systems. In the 3D case, melting criteria are derived based on the properties of local order in a system of microparticles. The order parameters are constructed from the cumulative distributions of the microparticle probability distributions as functions of various rotational invariants. The melting criteria proposed are constructed using static information on microparticle positions: a few snapshots of the system that allow for the determination of particle coordinates are enough to determine the phase state of the system. It is shown that criteria obtained in this way describe well the melting and premelting of 3D complex plasmas. In 2D systems, a system of microparticles interacting via a screened Coulomb (i.e., Debye — Hückel or Yukawa) potential is considered as an example, using molecular dynamics simulations. A number of new order parameters characterizing the melting of 2D complex plasmas are proposed. The order parameters and melting criteria proposed for 2D and 3D complex plasmas can be applied to other systems as well.

Fulltext is available at IOP
PACS: 52.27.Lw, 52.65.Yy, 61.72.J−, 64.70.D− (all)
DOI: 10.3367/UFNe.0180.201010e.1095
Citation: Klumov B A "On melting criteria for complex plasma" Phys. Usp. 53 1053–1065 (2010)
BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks

Оригинал: Клумов Б А «О критериях плавления комплексной плазмы» УФН 180 1095–1108 (2010); DOI: 10.3367/UFNr.0180.201010e.1095

References (50) Cited by (73) Similar articles (7) ↓

  1. S.V. Vladimirov, Yu.O. Tyshetskiy “On description of a collisionless quantum plasma54 1243–1256 (2011)
  2. V.N. Tsytovich “On the physical interpretation of Thomson scattering in a plasma56 180–191 (2013)
  3. S.M. Stishov “Quantum effects in a system of Boltzmann hard spheres62 617–622 (2019)
  4. D.N. Zubarev, Yu.G. Rudoi “On the evaluation of the correlation functions in quantum statistical physics36 (3) 188–191 (1993)
  5. V.V. Brazhkin “Can glassforming liquids be 'simple'?62 623–629 (2019)
  6. V.S. Olkhovsky “On time as a quantum observable canonically conjugate to energy54 829–835 (2011)
  7. Yu.Kh. Vekilov, O.M. Krasil’nikov, A.V. Lugovskoy “Elastic properties of solids at high pressure58 1106–1114 (2015)

The list is formed automatically.

© 1918–2020 Uspekhi Fizicheskikh Nauk
Email: Editorial office contacts About the journal Terms and conditions