نتایج جستجو برای: sr doped laalo3

تعداد نتایج: 75789  

2017
Katsuhiko Goto Yutaka Nakachi Kazushige Ueda

In the survey of photoluminescence properties of rare-earth doped alkaline-earth stannates, CaSnO3 was found to show intense white luminescence by Pr doping and green luminescence by Tb-Mg codoping. Pr-doped CaSnO3 showed not only a red emission line originating from the f-f transition from D2 to H4 state, which is observed in Pr doped CaTiO3 or SrTiO3, but also an intense blue-green line assig...

Journal: :international journal of nanoscience and nanotechnology 2013
h. tamaddon* a. maghsoudipour

the fuel cells are distinguished as generating of green allocable energy and are electrochemical devices of low environmental impact. porous nanocrystalline strontium-doped lanthanum manganite la0.8sr0.2mno3 (lsm) cathode materials were prepared by mechanochemical route in various grinding times. carbon black was employed to produce pores. the formation of lsm single phase was studied by x-ray ...

2016
P. W. Lee V. N. Singh G. Y. Guo H.-J. Liu J.-C. Lin Y.-H. Chu C. H. Chen M.-W. Chu

The metallic interface between insulating LaAlO3 and SrTiO3 opens up the field of oxide electronics. With more than a decade of researches on this heterostructure, the origin of the interfacial conductivity, however, remains unsettled. Here we resolve this long-standing puzzle by atomic-scale observation of electron-gas formation for screening hidden lattice instabilities, rejuvenated near the ...

Journal: :Nature communications 2014
E Lesne N Reyren D Doennig R Mattana H Jaffrès V Cros F Petroff F Choueikani P Ohresser R Pentcheva A Barthélémy M Bibes

Perovskite materials engineered in epitaxial heterostructures have been intensely investigated during the last decade. The interface formed by an LaAlO3 thin film grown on top of a TiO2-terminated SrTiO3 substrate hosts a two-dimensional electronic system and has become the prototypical example of this field. Although controversy exists regarding some of its physical properties and their precis...

2017
M. Salluzzo S. Gariglio D. Stornaiuolo V. Sessi S. Rusponi C. Piamonteze G. M. De Luca M. Minola D. Marré A. Gadaleta H. Brune F. Nolting N. B. Brookes G. Ghiringhelli

Possible ferromagnetism induced in otherwise nonmagnetic materials has been motivating intense research in complex oxide heterostructures. Here we show that a confined magnetism is realized at the interface between SrTiO3 and two insulating polar oxides, BiMnO3 and LaAlO3. By using polarization dependent x-ray absorption spectroscopy, we find that in both cases the magnetism can be stabilized b...

2017
Xing-Yao Feng Hong-Xia Liu Xing Wang Lu Zhao Chen-Xi Fei He-Lei Liu

The capacitance and leakage current properties of multilayer La2O3/Al2O3 dielectric stacks and LaAlO3 dielectric film are investigated in this paper. A clear promotion of capacitance properties is observed for multilayer La2O3/Al2O3 stacks after post-deposition annealing (PDA) at 800 °C compared with PDA at 600 °C, which indicated the recombination of defects and dangling bonds performs better ...

Journal: :Science China. Materials 2021

Sr-doped LaMnO3 (LSM) which is the first-generation cathode for solid oxide fuel cells (SOFCs) has been tailored with Zn ions, aiming to achieve improved protonation ability proton-conducting SOFCs (H-SOFCs). The new Sr and co-doped (LSMZ) can be successfully synthesized. first-principle studies indicate that LSMZ improves of LSM decreases barriers oxygen vacancy formation, leading high perform...

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