Low-temperature studies on the two-dimensional modulations in åkermanite-type crystals: Ca2MgSi2O7 and Ca2ZnSi2O7

B. Bagautdinov, K. Hagiya, S. Noguchi, M. Ohmasa, N. Ikeda, K. Kusaka, K. Iishi

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Two-dimensional modulation in synthetic åkermanite (Ca2MgSi2O7) and hardystonite (Ca2Zn Si2O7) has been studied by the single-crystal X-ray diffraction methods in the temperature range between 18 and 297 K. It is found that change of the modulation wavelength Ca2MgSi2O7 is slight, but that in Ca2ZnSi2O7 it is noticeable and indicates a plateau-like temperature dependence. The plateau-like region may be regarded as an independent phase with a specific q [∼0.2924(3)].

Original languageEnglish
Pages (from-to)346-359
Number of pages14
JournalPhysics and Chemistry of Minerals
Volume29
Issue number5
DOIs
Publication statusPublished - Aug 5 2002
Externally publishedYes

Keywords

  • Hardystonite
  • Incommensurate phase
  • Variation of q
  • Åkermanite

ASJC Scopus subject areas

  • Materials Science(all)
  • Geochemistry and Petrology

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