Article ID Journal Published Year Pages File Type
1815570 Physica B: Condensed Matter 2006 4 Pages PDF
Abstract

Three interesting and useful layered Co oxides are briefly reviewed. NaxCoO2 is a good thermoelectric material, in which large entropy on Co4+ plays an important role. Unconventional dielectric response in Bi2Sr2CoO6+d is explained in terms of dielectric mixture formed by charge segregation. A new A-site ordered Co oxide Sr3YCo4O10.5 is found to be a room-temperature ferromagnet, in which an orbital order of magnetic Co3+ ions may drive the ferromagnetism.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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