Mössbauer effect study of Li21+Me4+Fe63+O122−spinels

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Mössbauer effect study of Li21+Me4+Fe63+O122−spinels

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dc.contributor.author Saleh, H.A.
dc.contributor.author El Nimr, M.K.
dc.contributor.author Nada, N.
dc.contributor.author Fayek, M. K. [محمد خورشيد فائق]
dc.date.accessioned 2009-12-23T10:51:26Z
dc.date.available 2009-12-23T10:51:26Z
dc.date.issued 1986-02
dc.identifier.citation Issue Volume 28, Numbers 1-4 / February, 1986 en_US
dc.identifier.issn 0304-3843 (Print)
dc.identifier.issn 1572-9540 (Online)
dc.identifier.uri http://dx.doi.org/10.1007/BF02061526
dc.identifier.uri http://hdl.handle.net/10576/10413
dc.description.abstract Mossbauer effect spectra are obtained for the cubic ferrites Li2 Me Fe6 O12 (where Me4+ is one of the tetravalent elements Ge, Si and Ti) at 78K up to their magnetic transition temperatures. In a rather large temperature range they clearly are a broadened six lines pattern. Each spectrum is successfully analysed to two sets of magnetic hyperfine splitting Zeeman patterns with isomer shifts corresponding to ferric ions in both tetrahedral and octahedral sites. The tendency of the present non-magnetic elements to occupy the octahedral site led to an antiparallel Neel spin structure. Debye and Neel temperatures of these substituted lithium ferrites are determined and their hyperfine parameters are discussed. en_US
dc.language.iso en en_US
dc.publisher Springer Netherlands en_US
dc.subject Physics en_US
dc.subject Astronomy en_US
dc.title Mössbauer effect study of Li21+Me4+Fe63+O122−spinels en_US
dc.type Article en_US

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