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Vacancy Ordering Ef...
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Christensen, JeppeStockholms universitet,Institutionen för fysikalisk kemi, oorganisk kemi och strukturkemi
(author)
Vacancy Ordering Effects in AlB2-type ErGe2-x(0.4 < x < or = 0.5)
- Article/chapterEnglish2008
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LIBRIS-ID:oai:DiVA.org:su-24575
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-24575URI
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https://doi.org/10.1107/S0108768108005119DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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In the Er-Ge system, the compostion range ErGe2 to Er2Ge3 has been investigated. Eight samples were produced by arc melting of the elements, and analyzed using X-ray powder diffraction. Nine crystal structures were found to be present in the samples. The structures are described as a homologous series and presented within the superspace formalism using the superspace group X2/m(0)0s, X representing the centring vector (½, ½, 0, ½). In this description the modulation vector q = (a* + c*) is shown to be a direct measure of the Ge content as ErGe2 - ( falls in the range to ½). The large composition range is achieved by extended vacancy ordering in the planar 63 net of Ge with subsequent relaxation.
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Lidin, SvenStockholms universitet,Institutionen för fysikalisk kemi, oorganisk kemi och strukturkemi(Swepub:su)lidin
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Malaman, Bernard
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Venturini, Gerard
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Stockholms universitetInstitutionen för fysikalisk kemi, oorganisk kemi och strukturkemi
(creator_code:org_t)
Related titles
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In:Acta Crystallographica Section B64:3, s. 272-2800108-76811600-5740
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