نتایج جستجو برای: doped lanthanum manganite
تعداد نتایج: 51809 فیلتر نتایج به سال:
We introduce an innovative approach to the simultaneous control of growth mode and magnetotransport properties of manganite thin films, based on an easy-to-implement film/substrate interface engineering. The deposition of a manganite seed layer and the optimization of the substrate temperature allows a persistent bi-dimensional epitaxy and robust ferromagnetic properties at the same time. Struc...
Phase separation is a crucial ingredient of the physics of manganites; however, the role of mixed phases in the development of the colossal magnetoresistance (CMR) phenomenon still needs to be clarified. We report the realization of CMR in a single-valent LaMnO3 manganite. We found that the insulator-to-metal transition at 32 GPa is well described using the percolation theory. Pressure induces ...
The results from simulation of the structural and optical properties YAG pure, doped with two ions four lanthanum, are presented in this paper to investigate effect dopants on a crystal. was carried out Quantum Espresso program. band structure, density states, dielectric function, absorption, refractive index, energy loss function reflectivity were calculated for different samples. It can be as...
We discuss the temperature-concentration (T-x) phase diagram of La2-x(SrlBa)xCuO4. The magnetic interactions of the hole spins with the Cu spins yield frustration, explaining the fast decrease in the NEel temperature and yielding a new spin glass phase. The same interactions yield a strong attractive hole-hole potential, which can lead to pairing and superconductivity. 1. INTRODUCTION Both La2....
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