Stability of Metallic Structure in Compressed Solid GeH4

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dc.creatorZhang, Chao
dc.creatorLi, Yanling
dc.creatorChen, Xiaojia
dc.creatorZhang, Ruiqin
dc.creatorLin, Haiqing
dc.date2008-04-30
dc.date.accessioned2026-07-07T09:36:03Z
dc.date.available2026-07-07T09:36:03Z
dc.descriptionWe study the electronic and lattice dynamical properties of compressed solid germane in the pressure range up to 200 GPa with density functional theory. A stable metallic structure, Aba2, with a base-centered orthorhombic symmetry was found to be the lowest enthalpy phase for pressure from 23 to 177 GPa, suggesting an insulator to metal phase transition around 23 GPa. The Aba2 structure is predicted to have higher superconducting transition temperature than SiH4 reported recently, thus presenting new possibilities for exploring high temperature superconductivity in this hydrogen-rich system.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0804.4812
dc.identifierhttp://arxiv.org/abs/0804.4812
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/160041
dc.subjectSuperconductivity
dc.subjectMaterials Science
dc.titleStability of Metallic Structure in Compressed Solid GeH4
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