Sintering and Properties of Dense Manganese-Doped Calcium Phosphate Bioceramics Prepared Using Sol-Gel Derived Nanopowders I. Sopyan a , N. A. Nawawi a , Q. H. Shah b , S. Ramesh c , C. Y. Tan d & M. Hamdi c a Department of Manufacturing and Materials Engineering, Faculty of Engineering, International Islamic University Malaysia, Gombak, Kuala Lumpur, Malaysia b Department of Mechanical Enginee...

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The temperature and pressure effects on the resistivity of the manganese oxides are studied analytically via the Kondo lattice model with a strong Hund’s coupling. We obtain analytically the single-particle density of states on the Bethe lattice in the large connectivity limit using the analytical variant of the dynamic Lanczos method. From the density of states for the doped system, we obtain ...

Manganese materials with attractive optical properties have been proposed for applications in such areas as photonics, light-emitting diodes, and bioimaging. In this paper, we have demonstrated multicolor Mn2+ luminescence in the visible region by controlling Ce3+-Mn2+ energy transfer in rare earth nanocrystals [NCs]. CeF3 and CePO4 NCs doped with Mn2+ have been prepared and can be well dispers...

The Kondo lattice model with Hund’s ferromagnetic spin coupling is investigated as a microscopic model of the perovskite-type 3d manganese oxide R1−xAxMnO3 where R and A are rare earth element and alkaline earth element, respectively. We take the classical spin limit S = ∞ for the simplicity of the calculation, since the quantum exchange process seems to be irrelevant in the high temperature pa...