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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Structures and potential superconductivity in at high pressure: en route to "metallic hydrogen".

A way to circumvent the high pressures needed to metallize hydrogen is to "precompress" it in hydrogen-rich molecules, a strategy probed theoretically for silane. We show that phases with tetrahedral SiH4 molecules should undergo phase transitions with sixfold- and eightfold-coordinate Si appearing above 25 GPa. The most stable structure found can be metallized at under a megabar and at a compression close to the prediction of Goldhammer-Herzfeld criterion. According to a BCS-like estimate, metallic silane should be a high-temperature superconductor.[1]

References

  1. Structures and potential superconductivity in at high pressure: en route to "metallic hydrogen". Feng, J., Grochala, W., Jaroń, T., Hoffmann, R., Bergara, A., Ashcroft, N.W. Phys. Rev. Lett. (2006) [Pubmed]
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