نتایج جستجو برای: doped lanthanum manganite
تعداد نتایج: 51809 فیلتر نتایج به سال:
Ce-doped lanthanum gadolinium pyrosilicate are among the most efficient oxide scintillation crystal with a light yield of ca. 40000 ph./MeV and high energy resolution. Meanwhile, process obtaining...
We use neutron scattering to study the lattice and magnetic structure of the layered half-doped manganite Pr(0.5)Ca(1.5)MnO(4). On cooling from high temperature, the system first becomes charge-and orbital-ordered (CO/OO) near T(CO) = 300 K and then develops checkerboard-like antiferromagnetic (AF) order below T(N) = 130 K. At temperatures above T(N) but below T(CO) (T(N)<T<T(CO)), the appearan...
The thermoelectric properties of lanthanum-doped polycrystalline perovskite-type europium titanate were measured from room temperature to 900K and compared to those of MTiO3 (M 1⁄4 Ca, Sr, Ba). The differences in the titanates were calculated in terms of the differences of A-site ion and Ti–O distance that determined the covalent bonding strength. The A-site ion appeared to have little influenc...
Over the past few years, photogenic fabrication of metal oxide nanoparticles has attracted considerable attention, owing to simple, eco-friendly, and non-toxic procedure. Herein, we fabricated NiO altered their optical properties by doping with a rare earth element (lanthanum) using Sesbania grandiflora broth for antibacterial applications. The lanthanum was systematically studied. prepared nan...
The finite-size effect on the evolution of the Griffiths phase (GP) is studied using nanoparticles of half-doped manganite Pr0.5Sr0.5MnO3 with different average particle sizes but with similar structural parameters. All the samples exhibit pronounced GP behavior. With reducing the particle size, the Griffiths temperature remains almost unchanged but the characteristic critical temperature [Form...
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