Hydration mechanism of ringwoodite resolved by high-resolution single crystal neutron diffraction

抄録

Ringwoodite is the most important water reservoir in the deep mantle. In order to understand the effect of water on its physical properties, it is essential to elucidate the position of hydrogen and its exchanging mechanism with the other cations in the ringwoodite crystal structure. Here we show our single crystal neutron diffraction results of hydrous ringwoodite, which was conducted for the first time on it for resolving its hydrogen position. We successfully demonstrated the hydrogen position and its occupancy in the ringwoodite crystal structure.