Identification of phase transitions and metastability in dynamically compressed antimony using ultrafast x-ray diffraction
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...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Published: |
American Physical Society
2019
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| _version_ | 1826297314712485888 |
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| author | Coleman, AL Gorman, MG Briggs, R McWilliams, RS McGonegle, D Bolme, CA Gleason, AE Fratanduono, DE Smith, RF Galtier, E Lee, HJ Nagler, B Granados, E Collins, GW Eggert, JH Wark, J McMahon, MI |
| author_facet | Coleman, AL Gorman, MG Briggs, R McWilliams, RS McGonegle, D Bolme, CA Gleason, AE Fratanduono, DE Smith, RF Galtier, E Lee, HJ Nagler, B Granados, E Collins, GW Eggert, JH Wark, J McMahon, MI |
| author_sort | Coleman, AL |
| collection | OXFORD |
| description | 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 59 GPa. An additional phase which does not exist under static compression, Sb-I', is also observed between 8 and 12 GPa, beyond the normal stability field of Sb-I, and resembles Sb-I with a resolved Peierls distortion. The incommensurate Sb-II high-pressure phase can be recovered metastably on release to ambient pressure, where it is stable for more than 10 ns. |
| first_indexed | 2024-03-07T04:29:42Z |
| format | Journal article |
| id | oxford-uuid:cde3bf92-9874-4779-830f-d9ea60842ba1 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T04:29:42Z |
| publishDate | 2019 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:cde3bf92-9874-4779-830f-d9ea60842ba12022-03-27T07:31:52ZIdentification of phase transitions and metastability in dynamically compressed antimony using ultrafast x-ray diffractionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:cde3bf92-9874-4779-830f-d9ea60842ba1Symplectic Elements at OxfordAmerican Physical Society2019Coleman, ALGorman, MGBriggs, RMcWilliams, RSMcGonegle, DBolme, CAGleason, AEFratanduono, DESmith, RFGaltier, ELee, HJNagler, BGranados, ECollins, GWEggert, JHWark, JMcMahon, MIUltrafast 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 59 GPa. An additional phase which does not exist under static compression, Sb-I', is also observed between 8 and 12 GPa, beyond the normal stability field of Sb-I, and resembles Sb-I with a resolved Peierls distortion. The incommensurate Sb-II high-pressure phase can be recovered metastably on release to ambient pressure, where it is stable for more than 10 ns. |
| spellingShingle | Coleman, AL Gorman, MG Briggs, R McWilliams, RS McGonegle, D Bolme, CA Gleason, AE Fratanduono, DE Smith, RF Galtier, E Lee, HJ Nagler, B Granados, E Collins, GW Eggert, JH Wark, J McMahon, MI Identification of phase transitions and metastability in dynamically compressed antimony using ultrafast x-ray diffraction |
| title | Identification of phase transitions and metastability in dynamically compressed antimony using ultrafast x-ray diffraction |
| title_full | Identification of phase transitions and metastability in dynamically compressed antimony using ultrafast x-ray diffraction |
| title_fullStr | Identification of phase transitions and metastability in dynamically compressed antimony using ultrafast x-ray diffraction |
| title_full_unstemmed | Identification of phase transitions and metastability in dynamically compressed antimony using ultrafast x-ray diffraction |
| title_short | Identification of phase transitions and metastability in dynamically compressed antimony using ultrafast x-ray diffraction |
| title_sort | identification of phase transitions and metastability in dynamically compressed antimony using ultrafast x ray diffraction |
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