• Corpus ID: 227126571

Superionic State Discovered in Ternary Hypervalent Silicon Hydrides via Sodium inside the Earth

  title={Superionic State Discovered in Ternary Hypervalent Silicon Hydrides via Sodium inside the Earth},
  author={Tianxiao Liang and Zihan Zhang and Hongyu Yu and Tian Cui and Chris J. Pickard and De-fang Duan},
  journal={arXiv: Materials Science},
Superionic states are phases of matters that can simultaneously exhibit some of the properties of a fluid and of a solid. Superionic states of ice, H$_{3}$O, He-H$_{2}$O or He-NH$_{3}$ compounds have been reported in previous works. Silicon, sodium, and hydrogen are abundant elements inside the earth. Here, we use ab initio calculations to show that, at extreme conditions inside the earth, Na, Si, and H can form many hypervalent compounds that some of them can exist every close to ambient… 

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