Silicon allotropes by large-volume high-pressure techniques: crystal growth mechanisms, phase diagrams and hexagonal nanostructured Si-6H by in situ X-ray diffraction and computational methods

Courac, A.; Le Godec, Y.

doi:10.1107/S2052520626004026

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 11
(a) Binary phase diagram of the NaSi–Si system showing the presence of Na₄Si₄, which forms eutectic equilibria with Si (Morito et al., 2009

). (b) Phase diagram of the NaSi–Si system at 4 GPa with two clathrates, Na₈Si₄₆ (sI), and Na_30.5Si₁₃₆ (sII-HP). The points A to H are explained in Table 4

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 82| Part 3| June 2026| Pages 280-298

https://doi.org/10.1107/S2052520626004026

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