Study reveals new structure of gold at extremes

Gold is an extremely important material for high-pressure experiments and is considered the 'gold standard' for calculating pressure in static diamond anvil cell experiments. When compressed slowly at room temperature (on the order of seconds to minutes), gold prefers to be the face-centered cubic (fcc) structure at pressures up to three times the center of the Earth. However, researchers from Lawrence Livermore National Laboratory and the Carnegie Institution of Washington have found that when gold is compressed rapidly over nanoseconds (1 billionth of a second), the increase in pressure and temperature changes the crystalline structure to a new phase of gold. This well-known body centered cubic (bcc) structure morphs to a more open crystal structure than the fcc structure.

Study reveals new structure of gold at extremes

Gold is an extremely important material for high-pressure experiments and is considered the "gold standard" for calculating pressure in static diamond anvil cell experiments. When compressed ...

Wed 31 Jul 19 from Phys.org

Study Reveals New Structure in Gold Existing at Extreme Conditions, Tue 30 Jul 19 from Newswise

Completely New Form of Gold Created

Gold rearranges its atoms and forms a previously unknown structure.

Fri 2 Aug 19 from Livescience

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