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Figure 5
Comparison of the experimentally determined P–V curves for the polymorphs of NiSi measured to date. The EoSs of B31-, B20- and B2-NiSi are from Lord et al. (2012BB15; thin blue lines), while the EoS of Pmmn-NiSi is from this study (thick red line). The circles represent the P–V data for B20-NiSi from experiments 1 (filled) and 2 (open) of this study. The dashed lines represent the ab initio EoSs from Vočadlo et al. (2012BB19) for B31-, B20- and B2-NiSi; the EoS for Pmmn-NiSi is from Wood et al. (2013BB20) and is the average of their low-pressure and high-pressure EoSs. A constant volume offset has been applied to all the ab initio EoSs so that their V0 values match the relevant measured or estimated experimental values.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 48| Part 6| December 2015| Pages 1914-1920
doi:10.1107/S1600576715020087
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