All the disorder mechanisms in the 13:58 phases come together. Out of the modulated confusion rises the remarkable phase Ce12.60Cd58.68(2)
2008 (English)In: Inorganic Chemistry, ISSN 0020-1669, E-ISSN 1520-510X, Vol. 47, no 3, 1079-1086 p.Article in journal (Refereed) Published
The compound Ce12.60Cd58.68(2) is a metrically commensurate representative of the incommensurately modulated phase Ce13Cd57+delta. It is most likely a lock-in phase. The structure, which was solved using seeding of the modulation from those positions most affected as well as direct solution by charge flipping, represents a rare case of ordering in a family of structures where disorder is the rule. The disorder mechanisms, known from other RE13Zn/Cd-58 phases, order in this phase to give rise to a remarkable interplay between interstitials and vacancies. The compound crystallizes in the super space group Ccmm(alpha 00)00s (standard setting Amma(00 gamma)s00) with cell parameters a 27.2789(14) angstrom, b = 15.7592(1) angstrom, and c = 15.5816(4) angstrom and a q vector close to 2/3.
Place, publisher, year, edition, pages
2008. Vol. 47, no 3, 1079-1086 p.
IdentifiersURN: urn:nbn:se:su:diva-24594DOI: 10.1021/ic701962bISI: 000252714500041OAI: oai:DiVA.org:su-24594DiVA: diva2:197851