High pressure generation and investigation of the spin transition of ferropericlase (Mg0.83Fe0.17)O

E. Ito, T. Yoshino, D. Yamazaki, A. S. Shatskiy, S. Shan, X. Guo, T. Katsura, Y. Higo, K. Funakoshi

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5 Citations (Scopus)

Abstract

High pressure generation has been tried by using the Kawai-cell equipped with sintered diamond cubes in conjunction with investigation of the spin transition in Fe2+ of (Mg0.83Fe0.17)O (ferropericlase, Fp). The Kawai-cell was squeezed in the DIA type press SPEED mkII installed at SPring-8. The volumes of the Fp and Au pressure standard were simultaneously determined by in situ X-ray diffraction using the synchrotron radiation. The maximum attainable pressure has reached 90 GPa at 300 K based on Anderson et al.'s Au scale [4]. The P-V data of (Mg0.83Fe 0.17)O were acquired at 300 K and 700 K up to 90 GPa. From detailed analysis of the compression data, it is suggested that the spin transition proceeds over pressure ranges from 50 to 70 GPa at 300 K and from 50 to 75 GPa at 700 K.

Original languageEnglish
Article number012099
JournalJournal of Physics: Conference Series
Volume215
DOIs
Publication statusPublished - May 12 2010

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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