Crystal Structures and Thermoelectric Properties of the Layered Cobalt Oxides
نویسندگان
چکیده
منابع مشابه
Contribution of electronic structure to the large thermoelectric power in layered cobalt oxides
With a strong help of high-resolution photoemission spectroscopy we demonstrate in this paper that the large thermoelectric power observed in the layered cobalt oxides, such as Ca3Co4O9 , Na0.6CoO2, and Bi2Sr2Co2O9, can be well accounted for with the Boltzmann-type metallic electrical conduction. An intense peak with 1.5–2 eV in width was observed in the photoemission spectra with its center at...
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A general spin-state model and a qualitative physical picture have been proposed for a class of lately synthesized layered cobalt oxides (LCOs) by means of density functional calculations. As the plane corrugation of the cobalt-oxygen layer decreases, the LCOs evolve from a high-spin (HS) superexchangecoupled antiferromagnetic (AFM) insulator to an almost-HS AFM/ferromagnetic (FM) competing sys...
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ژورنال
عنوان ژورنال: Nihon Kessho Gakkaishi
سال: 2004
ISSN: 0369-4585,1884-5576
DOI: 10.5940/jcrsj.46.27