Full metadata record
DC Field | Value | Language |
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dc.contributor.author | 김성진 | * |
dc.date.accessioned | 2016-08-27T02:08:28Z | - |
dc.date.available | 2016-08-27T02:08:28Z | - |
dc.date.issued | 2000 | * |
dc.identifier.issn | 0022-4596 | * |
dc.identifier.other | OAK-501 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/215369 | - |
dc.description.abstract | A single phase of Ba6Ge25-x (x similar to 1) was obtained from a direct element combination reaction in a sealed graphite tube at 830 degrees C, Its structure was determined by single-crystal X-ray diffraction methods, Ba6Ge25-x adopts the chiral cubic space group P4(1)32 (No, 213) with dimensions of a = 14.5483(2) Angstrom and Z = 4, The structure consists of helical chains of Ba atom-centered pentagonal dodecahedra, Ba@Ge-20, and zeolite-like cages formed by those chains. There are vacancies distributed over the Ge sites giving a composition of Ba6Ge24, in which charge balance according to the Zintl formalism is retained, The compound therefore satisfies the classical Zintl concept, Polycrystalline ingots of Ba6Ge25-x showed an electrical conductivity of 2000 S/cm and a Seebeck coefficient of -18 mu V/K at room temperature. An anomalous broad transition in the electrical conductivity and Seebeck coefficient was observed at similar to 100 K, Ba6Ge23.32Sn1.68 and Ba6Ge21.93In3.07 as ternary derivatives of Ba6Ge25-x were also synthesized and their structural and physical properties compared with those of Ba6Ge25-x. (C) 2000 Academic Press. | * |
dc.language | English | * |
dc.publisher | ACADEMIC PRESS INC | * |
dc.subject | chiral clathrate | * |
dc.subject | thermoelectric | * |
dc.subject | zintl phase | * |
dc.subject | phonon gas | * |
dc.subject | electron crystal | * |
dc.title | Structure and thermoelectric properties of Ba6Ge25-x, Ba6Ge23Sn2, and Ba6Ge22In3: Zintl phases with a chiral clathrate structure | * |
dc.type | Article | * |
dc.relation.issue | 2 | * |
dc.relation.volume | 153 | * |
dc.relation.index | SCI | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 321 | * |
dc.relation.lastpage | 329 | * |
dc.relation.journaltitle | JOURNAL OF SOLID STATE CHEMISTRY | * |
dc.identifier.doi | 10.1006/jssc.2000.8777 | * |
dc.identifier.wosid | WOS:000089082800018 | * |
dc.author.google | Kim, SJ | * |
dc.author.google | Hu, SQ | * |
dc.author.google | Uher, C | * |
dc.author.google | Hogan, T | * |
dc.author.google | Huang, BQ | * |
dc.author.google | Corbett, JD | * |
dc.author.google | Kanatzidis, MG | * |
dc.contributor.scopusid | 김성진(56812714700) | * |
dc.date.modifydate | 20240301081003 | * |