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- W2083106077 abstract "A low- to high-density pressure-driven phase transition in amorphous silicon is investigated by synchrotron x-ray diffraction in the diamond anvil cell. Complementary atomistic molecular dynamics computer simulations provide insight into the underlying structural transformations and allow us to interpret the structure factors obtained from experiment. During compression the form of the scattering function $S(Q)$ changes abruptly at $13.5phantom{rule{0.3em}{0ex}}mathrm{GPa}$, indicating significant structural rearrangement in the amorphous solid. In particular, the first peak in $S(Q)$ shifts to larger $Q$ values. The changes are correlated with the occurrence of a low- to high-density (LDA-HDA) polyamorphic transition observed previously using Raman scattering and electrical conductivity measurements. The data are analyzed to provide real space (pair distribution function) information. The experimental data are compared with results from molecular dynamics (MD) simulations using a modified Stillinger-Weber many-body potential energy function in order to extract structural information on the densified amorphous material. We deduce that the polyamorphic transition involves an abrupt increase in the proportion of 5- and 6-coordinate Si atoms. The overall structure of the HDA polyamorph can be related to that of the LDA form by creation of highly-coordinated ``defects'' within the tetrahedrally-bonded LDA network. However classical and quantum MD simulations indicate that an even higher density amorphous state might exist, based on structures that resemble the densely-packed metallic polymorphs of crystalline Si." @default.
- W2083106077 created "2016-06-24" @default.
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- W2083106077 date "2007-06-28" @default.
- W2083106077 modified "2023-10-16" @default.
- W2083106077 title "High-pressure x-ray scattering and computer simulation studies of density-induced polyamorphism in silicon" @default.
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- W2083106077 cites W1972758026 @default.
- W2083106077 cites W1972868230 @default.
- W2083106077 cites W1973318095 @default.
- W2083106077 cites W1975008370 @default.
- W2083106077 cites W1975439630 @default.
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- W2083106077 cites W1982399462 @default.
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- W2083106077 cites W2037782625 @default.
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- W2083106077 doi "https://doi.org/10.1103/physrevb.75.224118" @default.
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