New High Temperature Diboride Superconductors: AgB2 and AuB2

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dc.creatorKwon, S. K.
dc.creatorYoun, S. J.
dc.creatorKim, K. S.
dc.creatorMin, B. I.
dc.date2001-06-23
dc.date.accessioned2026-07-07T02:41:53Z
dc.date.available2026-07-07T02:41:53Z
dc.descriptionBased on electronic structure calculations, we have found that noble metal diborides, AgB2 and AuB2, are potential candidates for conventional BCS-type high temperature superconductors. B 2p density of states dominates at the Fermi level in comparison with Ag 4d and Au 5d states. Furthermore, the electron-phonon coupling constant λis much larger in AgB2 and AuB2 than in MgB2. Estimated transition temperatures for AgB2 and AuB2 are T_c = 59 K and 72 K, respectively. These are about 2 ~ 3 times higher than the estimated T_c = 27 K in MgB2 and almost comparable to those in cuprate superconductors.
dc.description4 pages including 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0106483
dc.identifierhttp://arxiv.org/abs/cond-mat/0106483
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/17921
dc.subjectSuperconductivity
dc.subjectMaterials Science
dc.titleNew High Temperature Diboride Superconductors: AgB2 and AuB2
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