Document Detail


In situ X-Ray study of thermal expansion and phase transition of iron at multimegabar pressure
MedLine Citation:
PMID:  11017609     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The density of varepsilon-iron has been calculated at pressures and temperatures up to 300 GPa and 1300 K, respectively. We observe varepsilon to beta phase transition at pressures between 135 and 300 GPa and temperature above 1350 K; the pattern can be interpreted in terms of double hexagonal close-packed structure. The density calculated at high pressure and temperature (330-360 GPa and 5000-7000 K) closely matches with preliminary reference Earth model density, thereby imposing constraint on the composition of the Earth's inner core.
Authors:
Dubrovinsky; Saxena; Tutti; Rekhi; LeBehan
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Physical review letters     Volume:  84     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2000 Feb 
Date Detail:
Created Date:  2000-10-05     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  UNITED STATES    
Other Details:
Languages:  Eng     Pagination:  1720-3     Citation Subset:  -    
Affiliation:
Institute of Earth Sciences, Uppsala University, S-752 36 Uppsala, Sweden.
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