Spontaneous mixing of binary alkali halide crystal by successive evaporation

Yuki Kimura, Yoshio Saito, Toshitaka Nakada, Chihiro Kaito

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Experimental studies on the mixing of alkali halide clusters of 200 nm sizes were performed systematically by the successive evaporation of different alkali halides on carbon substrates. The alkali halides used were NaCl, NaBr, KCl, KBr, KI, RbCl, RbBr, CsCl and CsBr. Intermixing took place independent of the crystal structure. It became evident that the limit of mixing was governed by the ratio of ionic radii. If the ratio of ionic radii between the cation and/or anion was more than 68%, intermixing occurred. It was also found that the crystal structure formed by intermixing between NaCl-type and CsCl-type structures becomes the NaCl type. If four different elements of cations and anions are involved, two mixture phases grew. The key elements of mixing were the nearest ionic radii.

Original languageEnglish
Pages (from-to)11-23
Number of pages13
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume13
Issue number1
DOIs
Publication statusPublished - 2002 Feb 1

Keywords

  • Alkali halide
  • Cluster
  • Electron microscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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