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Identification of phase transitions and metastability in dynamically compressed antimony using ultrafast x-ray diffraction

Abstract:

Ultrafast x-ray diffraction at the LCLS x-ray free electron laser has been used to resolve the structural behavior of antimony under shock compression to 59 GPa. Antimony is seen to transform to the incommensurate, host-guest phase Sb-II at ∼11 GPa, which forms on nanosecond timescales with ordered guest-atom chains. The high-pressure bcc phase Sb-III is observed above ∼15 GPa, some 8 GPa lower than in static compression studies, and mixed Sb-III/liquid diffraction are obtained between 38 and...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevLett.122.255704

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
Publisher:
American Physical Society
Journal:
Physical Review Letters More from this journal
Volume:
122
Issue:
25
Article number:
255704
Publication date:
2019-06-28
Acceptance date:
2019-05-31
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Pubs id:
pubs:1005588
UUID:
uuid:cde3bf92-9874-4779-830f-d9ea60842ba1
Local pid:
pubs:1005588
Source identifiers:
1005588
Deposit date:
2019-06-03

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