Solid metal found to have 'memory' of its liquid state
In a first, US-based researchers used high pressure and temperature to reveal "structural memory" in the metal bismuth. When bismuth is melted to a liquid at about 1000ºC under high pressure and then slowly cooled back, the solid retains structural patterns of its liquid state. The 'memory' was also correlated with a shift from magnetic repulsion to attraction, scientists said.