Journal Article

PreJuSER-47394

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Magnetism and electronic transport in Sr4-xLaxRu2-xMnxO9: Interplay of Mn and Ru redox chemistry

Manoharan, S. S.FZJ* ; Singh, B. ; Discroll, J. ; Brandford, W. ; Cohen, L.FZJ* ; Besmehn, A.FZJ*

2005
American Institute of Physics Melville, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/928  doi:10.1063/1.1847913

Abstract: Sr4Ru2O9 has a P62C space group and differs from the Ruddelsden-Popper series of the strontium ruthenate family where Ru is distinctly present in Ru+5 state with no Jahn-Teller activity. A significant increase in magnetic moment and coercivity is observed along with lowering of resistivity, especially around a critical concentration of x=0.2 in Sr4-xLaxRu2-xMnxO9. Such an unusual effect is correlated to the mixed magnetic pair effect arising out from the variable oxidation states of Ru as suggested by x-ray photoelectron spectroscopic studies. Our results substantiate the long-range ferromagnetism observed for Ruthenium-substituted three-dimensional manganites. (c) 2005 American Institute of Physics.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Zentralabteilung für Chemische Analysen (ZCH)
2. Elektronische Eigenschaften (IFF-IEE)

Research Program(s):

1. Kondensierte Materie (M02)

Appears in the scientific report 2005
Notes: This version is available at the following Publisher URL: http://jap.aip.org

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Database coverage:

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