Ultra-high pressure can have strange effects in physics and chemistry, and in a new study, high-pressure modeling has led to the prediction of four new compounds: compounds that don't form in normal ways, have crystal structures we've never seen before,
Cs, and they're all formed from lithium and cesium – though not in a conventional way. All four are superconductors, which means electricity can flow through them without resistance or energy loss.
"Yet under pressure it is the other way around. Cesium grabs the electrons of lithium, and this highly unusual chemical behavior leads to the formation of the four new compounds."Cs, have crystal structures that haven't been seen before. That's rare in compounds that are only made up of two elements, making this discovery even more unexpected and notable.
"Sure, from a technological standpoint, these critical temperatures are no good compared with what we've seen in polyhydrides – the hydrogen-rich compounds of some metals,""Yet this study deepens our understanding of lithium chemistry, and lithium as such could be interesting for superconductivity, perhaps in the form of a hypothetical lithide compound – so far we don't know if it exists or how to spell it.
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