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Voids, layers, and the first sharp diffraction peak in ZnCl2

Abstract:
The origin of the first-sharp diffraction peak (FSDP) in supercooled liquid ZnCl2 (a network-forming, intermediate strength fluid) is studied by computer simulation. Measures are introduced to characterize voids in the spatial distribution of cations and the existence of transient layered structures and to clarify their role in producing the FSDP. It is shown that the position of the FSDP is set by the mean intervoid separation and that its intensity is due to density fluctuations with a layered character even well above the glass transition.
Publication status:
Published

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Publisher copy:
10.1103/PhysRevLett.80.532

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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author
Journal:
Physical Review Letters
Volume:
80
Issue:
3
Pages:
532-535
Publication date:
1998-01-19
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Source identifiers:
60171
Language:
English
Pubs id:
pubs:60171
UUID:
uuid:58c3db83-44a3-4588-9007-1fab2c3d8550
Local pid:
pubs:60171
Deposit date:
2012-12-19

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