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Li ions move to the nearest Li position always passing through metastable positions.

Analogously, isolated social states such as the former country of East Germany can persist in a metastable state for decades until the isolating boundaries are breached by outside influences.

Inspired by this phenomenon, the researchers developed a superior supramolecular machine capable to efficiently convert widely used synthetic photoswitchable molecules -- azobenzenes -- from the stable to the metastable conformation with almost any wavelength of visible light.

In a recent experiment, this same group of researchers discovered a far more efficient way to create a previously observed metastable, superconducting-like state in K3C60 using laser light.

Due to this complication, previous measurement setups for generating and determining negative pressures have required significant laboratory space and even posed a disturbance to the system in the metastable state.