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Lanthanum strontium manganite (LSM or LSMO) is an oxide ceramic material with the general formula La 1−x Sr x MnO 3, where x describes the doping level. It has a perovskite -based crystal structure, which has the general form ABO 3 .
It is a matter of taste whether one includes the lone pair in a drawing. Lone pairs of electrons are more common for depictions that emphasize bonding, as in simple gaseous molecules, such as ammonia and nitric oxide. Nonmolecular compounds, e.g. sodium hydride, are best represented with colour-coded spheres that emphasise packing.
The aluminum oxide layer serves both as an architecture-directing agent and as a metal source for the backbone of the MOF structure. [33] The construction of the porous 3D metal-organic framework takes place during the microwave synthesis, when the atomic layer deposited substrate is exposed to a solution of the requisite linker in a DMF /H 2 O ...
Near the surface of a semi-conducting metal oxide the valence and conduction bands are of higher energy, causing the upward bending of the band energy as shown in the band energy diagram, such that promotion of an electron from the valence band to the conduction band by light of energy greater than the band gap results in migration of the ...
A complex oxide is a chemical compound that contains oxygen and at least two other elements (or oxygen and just one other element that's in at least two oxidation states). [1] Complex oxide materials are notable for their wide range of magnetic and electronic properties, such as ferromagnetism , ferroelectricity , and high-temperature ...
The most prominent transition metal oxide revealing a CO transition is the magnetite Fe 3 O 4 being a mixed-valence oxide where the iron atoms have a statistical distribution of Fe 3+ and Fe 2+ above the transition temperature. Below 122 K, the combination of 2+ and 3+ species arrange themselves in a regular pattern, whereas above that ...
In the resonating valence bond theory, the factors that determine the choice of one from among alternative crystal structures of a metal or intermetallic compound revolve around the energy of resonance of bonds among interatomic positions. It is clear that some modes of resonance would make larger contributions (be more mechanically stable than ...
Plutonium(IV) oxide, or plutonia, is a chemical compound with the formula Pu O 2. This high melting-point solid is a principal compound of plutonium . It can vary in color from yellow to olive green, depending on the particle size, temperature and method of production.