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Title: Real-Time Examination of Atomistic Mechanisms during Shock-Induced Structural Transformation in Silicon

Experimental determination of atomistic mechanisms linking crystal structures during a compression driven solid-solid phase transformation is a long standing and challenging scientific objective. Also, when using new capabilities at the Dynamic Compression Sector at the Advanced Photon Source, the structure of shocked Si at 19 GPa was identified as simple hexagonal and the lattice orientations between ambient cubic diamond and simple hexagonal structures were related. Furthermore, this approach is general and provides a powerful new method for examining atomistic mechanisms during stress-induced structural changes.
Authors:
 [1] ;  [1] ;  [1]
  1. Washington State Univ., Pullman, WA (United States). Inst. for Shock Physics
Publication Date:
OSTI Identifier:
1334536
Grant/Contract Number:
NA0002007; NA0002442; AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 117; Journal Issue: 4; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Washington State Univ., Pullman, WA (United States). Inst. for Shock Physics
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 36 MATERIALS SCIENCE