Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김성진 | * |
dc.date.accessioned | 2016-08-28T11:08:44Z | - |
dc.date.available | 2016-08-28T11:08:44Z | - |
dc.date.issued | 2001 | * |
dc.identifier.issn | 0020-1669 | * |
dc.identifier.other | OAK-774 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/218833 | - |
dc.description.abstract | BaGa2Sb2 was obtained from a direct element combination reaction in a sealed graphite tube at 950 °C, and its structure was determined by single-crystal X-ray diffraction methods. It crystallizes in the orthorhombic space group Pnma (No. 62) with a = 25.454(5) Å, b = 4.4421(9) Å, c = 10.273(6) Å, and Z = 8. The anionic [Ga2Sb6/3]2- framework is assembled by the ethane-like dimeric [Sb3Ga-GaSb3] units sharing Sb atoms, forming parallel tunnels with a 26-membered ring cross section. These tunnels are filled with Ba atoms. The three-dimensional [Ga2Sb6/3]2- framework features a new structure type. The compound satisfies the classical Zintl concept. Band structure calculations indicate that the material is a semiconductor, and this is confirmed by spectroscopic experiments which show Eg ∼ 0.35 eV. The calculations also suggest that the structure is stabilized by strong Ga-Ga covalent bonding interactions. Polycrystalline ingots of BaGa2Sb2 show room-temperature electrical conductivity of ∼65 S/cm and a Seebeck coefficient of +65 μV/K. | * |
dc.language | English | * |
dc.title | A unique framework in BaGa2Sb2: A new Zintl phase with large tunnels | * |
dc.type | Article | * |
dc.relation.issue | 15 | * |
dc.relation.volume | 40 | * |
dc.relation.index | SCI | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 3781 | * |
dc.relation.lastpage | 3785 | * |
dc.relation.journaltitle | Inorganic Chemistry | * |
dc.identifier.doi | 10.1021/ic010069n | * |
dc.identifier.wosid | WOS:000169861800017 | * |
dc.identifier.scopusid | 2-s2.0-0035898068 | * |
dc.author.google | Kim S.-J. | * |
dc.author.google | Kanatzidis M.G. | * |
dc.contributor.scopusid | 김성진(56812714700) | * |
dc.date.modifydate | 20240301081003 | * |