Long-Term Electrodeposition under a Uniform Parallel Magnetic Field. 2. Flow-Mode Transition from Laminar MHD Flow to Convection Cells with Two-Dimensional (2D) Nucleation

Ryoichi Morimoto, Miki Miura, Atsushi Sugiyama, Makoto Miura, Yoshinobu Oshikiri, Yena Kim, Iwao Mogi, Satoshi Takagi, Yusuke Yamauchi, Ryoichi Aogaki

Research output: Contribution to journalArticlepeer-review

Abstract

Following the analysis of the self-organization of two-dimensional (2D) nuclei in Part 1, the flow-mode transition from laminar magnetohydrodynamics (MHD) flow to convection cells accompanied by 2D nucleation under a uniform parallel magnetic field was theoretically examined using the statistical mechanics of nonequilibrium fluctuation. As a result, it was clarified that secondary nodules of 2D nuclei develop with multiple nucleations during the transition, forming a one-upon-another structure. Then, the evolution of the convection cells as well as the secondary nodules requires unstable growth of the asymmetrical fluctuations by the specific adsorption of an ion. As predicted by the theory, the electrolytic current in copper deposition with specific adsorption of hydrogen ions under a parallel magnetic field developed with time, resulting in a nonlinear steplike curve in a 1200 s deposition time.

Original languageEnglish
Pages (from-to)11870-11881
Number of pages12
JournalJournal of Physical Chemistry B
Volume124
Issue number52
DOIs
Publication statusPublished - 2020 Dec 31

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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