Pyrite form of group-14 element pernitrides synthesized at high pressure and high temperature
K Niwa1, H Ogasawara, M Hasegawa
1Department of Materials Physics, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 4620063, Japan. niwa@mp.pse.nagoya-u.ac.jp.
Abstract:
The chemical reaction of group-14 elements with molecular nitrogen at pressures above 60 GPa successfully leads to the formation of pyrite-type pernitrides. These new crystalline group-14 elemental pernitrides were found to show a bulk modulus higher than the other known group-14 elemental nitrides. Our results offer significant new progress in the solid-state chemistry of nitrides.
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