Pressure–induced phase transitions of Zn<sub>2</sub>SiO<sub>4</sub> III and IV studied using in–situ Raman spectroscopy
-
- KANZAKI Masami
- Institute for Planetary Materials, Okayama University
Description
<p>Recent structural study of the high–pressure Zn2SiO4 phases III and IV has suggested that they are retrograde phases formed during decompression. To clarify the stabilities of these phases under pressure, in–situ high–pressure Raman spectroscopic measurements were taken at room temperature. Phase III, having a ‘tetrahedral olivine’ structure, transformed to a new phase at 5.5 GPa during compression and returned to phase III at 1.7 GPa during decompression. Phase IV also exhibited a phase transition at 2.5 GPa with very small hysteresis. Both transitions are first–order. These observations confirmed that phases III and IV are retrograde phases.</p>
Journal
-
- Journal of Mineralogical and Petrological Sciences
-
Journal of Mineralogical and Petrological Sciences 113 (5), 263-267, 2018
Japan Association of Mineralogical Sciences
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390282763068362112
-
- NII Article ID
- 130007506141
-
- ISSN
- 13493825
- 13456296
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- Crossref
- CiNii Articles
- KAKEN
-
- Abstract License Flag
- Disallowed