کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1506110 | 993781 | 2009 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Ruthenium(IV) pyrochlore oxides: Realization of novel electronic properties through substitution at A- and B-sites Ruthenium(IV) pyrochlore oxides: Realization of novel electronic properties through substitution at A- and B-sites](/preview/png/1506110.png)
We describe an exploratory investigation of the structure and electronic properties of new ruthenium(IV) pyrochlore oxides and their manganese-substituted derivatives. Our investigations have revealed several, hitherto unreported, electronic ground states for these materials: a metallic and Pauli paramagnetic state for BiPbRu2O6.5 that turns into a semiconducting ferromagnetic spin-glass state at 50 K for BiPbRuMnO6.5; a metallic state that likely shows a charge density wave (CDW) instability at 50–225 K for Bi1.50Zn0.50Ru2O6.75 that is suppressed by manganese substitution in Bi1.50Zn0.50Ru1.75Mn0.25O6.50; and a metallic ferromagnetic spin-glass like state for Pb2Ru1.75Mn0.25O6.15. The results indeed affirm the richness of the electronic properties of ruthenium-based metal oxides.
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Journal: Solid State Sciences - Volume 11, Issue 1, January 2009, Pages 189–194