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EPR study of solid solutions La1-0.33yBa0.33yMn yAl1-yO3 (y = 0.02, 0.04, 0.10)

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dc.contributor.author Andronenko S.
dc.contributor.author Andronenko R.
dc.contributor.author Zagrebel'nyi O.
dc.date.accessioned 2018-09-18T20:19:34Z
dc.date.available 2018-09-18T20:19:34Z
dc.date.issued 2010
dc.identifier.issn 1087-6596
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/138740
dc.description.abstract Abstract-Solid solutions La1-0.33yBa0.33yM nyAl1-yO3 (y = 0.02, 0.04, 0.10) prepared using the ceramic technique have been investigated by the EPR method at temperatures of 77 and 300 K. By comparing with the calculated spectra, the experimental spectra have been assigned to Mn2+ ions (g = 2.04 and line width δHpp = 64 × 10-4 T at T=77K) and Mn 4+ ions (g = 1.97 and δHpp = 76 × 10 -4 T at T = 77 K) and the broad line (δHpp = 500 × 10-4 T at T = 77 K) has been attributed to clusters. The dilution of manganese ions as a result of the dissolution of La 0.67Ba0.33MnO3 in LaAlO3 has allowed one to trace the cluster formation and the spin dynamics of Mn ions. It has been established that, at room temperature, compared to the system in which the Sr2+ ion with a smaller ionic radius is the replacing element, the localized states are more stable at all three manganese concentrations (the EPR lines are more intense). The La0.67Ba0.33MnO3 clusters dissolved in LaAlO3 retain some properties of a concentrated compound even upon dilution to y = 0.02. © Pleiades Publishing, Ltd., 2010.
dc.relation.ispartofseries Glass Physics and Chemistry
dc.subject EPR
dc.subject Magnetic resonance
dc.subject Manganites
dc.subject Mn2+ and Mn4+ paramagnetic centers
dc.title EPR study of solid solutions La1-0.33yBa0.33yMn yAl1-yO3 (y = 0.02, 0.04, 0.10)
dc.type Article
dc.relation.ispartofseries-issue 5
dc.relation.ispartofseries-volume 36
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 617
dc.source.id SCOPUS10876596-2010-36-5-SID78649707527


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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