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Scientists Create Strange Superionic Ice That May Explain Neptune and Uranus Interiors
Key Takeaways
- CEA-led team led by Alexis Forestier recreated ice-giant interior conditions in a diamond anvil cell.
- Ice samples were heated above 1,800 Kelvin and squeezed to 230 gigapascals, over 2 million times Earth's atmospheric pressure.
- X-ray diffraction at the European Synchrotron Radiation Facility revealed a hexagonal close-packed oxygen sublattice.
- Above 200 gigapascals and 1,800 Kelvin, the hexagonal phase became dominant, replacing the face-centered cubic phase.
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DT Editorial Team··via phys.org