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Showing 1 to 9 of 9 for “"lanthanum manganite"”.
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Critical behavior and transport properties of lanthanum manganite
… well before the entire system orders. The manganites' magnetic heat capacity peak has been observed to shift upward in temperature with applied magnetic field unlike that of ordinary ferromagnets. In the double exchange picture proposed by Zener, magnetism is closely linked to the nature of …
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Dispersion behavior of aluminum oxide, lanthanum manganite and lanthanum chromite powders in liquids
… powders, the second is on the dispersion of lanthanum manganite and lanthanum chromite powders in nonaqueous solvents"--Abstract, page iii.</p>
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Photon-assisted spectroscopy of electronic interface states in perovskite oxide heterostructures
… as a substrate and three differently doped lanthanum manganite thin films (10-15 nm thickness) grown by pulsed laser deposition (PLD) on the SrTiO3 substrate(La0.7Sr0.3MnO3, La0.7Ca0.3MnO3, La0.7Ce0.3MnO3). The first part aims at the identification of electronic surface and interface states …
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Cathode polarization effects in rare Earth nickelate cathodes for solid oxide fuel cells
… of cathode materials, namely strontium doped lanthanum manganite, and a relatively new class of cathode materials, rare-earth nickelates. The experimentally measured relationship between cathode polarization and oxygen partial pressure will be correlated with the underlying transport and …
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Interactions of the Air Electrode with Electrolyte and Interconnect in Solid Oxide Cells
… zirconia electrolyte (YSZ)/strontium-doped lanthanum manganite electrode (LSM)/AISI 441 stainless steel interconnect tri-layer structure has been fabricated in order to simulate the air electrode working environment of a real cell. The tri-layer samples have been treated in dry/moist air …
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Understanding and Controlling the Surface Chemistry of Oxides to Enhance Catalytic Activity at Elevated Temperatures
… investigates the surface degradation of doped lanthanum manganite perovskite oxides which results from the formation of surface dopant precipitates during their operation as air electrodes in solid oxide fuel/electrolysis cells. The 4 effects of polarization on the surface degradation are …
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Aging Effects of the Cathode and Determination of Single Electrode Performance in a Solid Oxide Fuel Cell
… real electrode systems.;In the Strontium-doped lanthanum manganite (LSM) cathode of SOFCs, one special phenomenon of degradation was noticed as a changing polarization resistance over tens of hours in a cell at open circuit voltage (Aging effect). This aging effect was reversible during …
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Developments and applications of THz polaritonics, efficient THz generation, and single-shot THz detection
… the correlated electron material calcium doped lanthanum manganite. The data indicate that on the 1 picosecond to 1 nanosecond timescale there is limited change in the conductivity of the material, suggesting that large scale domain growth is required in order for the material to reach the final …
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Atomic resolution studies of oxide superlattices and ultrathin films
The ability to grow ultrathin films layer-by-layer with well-defined epitaxial relationships has allowed research groups worldwide to grow a range of artificial films and superlattices, first for semiconductors, and now with oxides. In the oxides thin film research community, there have been …