Document Detail


Observation of a wurtzite form of gallium arsenide.
MedLine Citation:
PMID:  16384157     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
After a pressure decrease to ambient, the high-pressure SC16 phase of GaAs is found to transform to the hexagonal wurtzite structure. This has been suggested for GaAs in calculations but never previously observed experimentally. Wurtzite-GaAs is found to be stable at ambient pressures at temperatures up to 473 K, with a structure that is only slightly distorted from ideal. On recompression, the ratio is constant with pressure and wurtzite-GaAs transforms to the orthorhombic phase at 18.7(9) GPa.
Authors:
M I McMahon; R J Nelmes
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Publication Detail:
Type:  Journal Article     Date:  2005-11-16
Journal Detail:
Title:  Physical review letters     Volume:  95     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2005 Nov 
Date Detail:
Created Date:  2005-12-30     Completed Date:  2006-02-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  215505     Citation Subset:  -    
Affiliation:
SUPA, School of Physics and Centre for Science at Extreme Conditions, The University of Edinburgh, Mayfield Road, Edinburgh, EH9 3JZ, United Kingdom.
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