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Strontium Ruthenate
Strontium ruthenate may refer to two compounds: * Monostrontium ruthenate, SrRuO3, a ferromagnetic perovskite. * Distrontium ruthenate Distrontium ruthenate, also known as strontium ruthenate, is an oxide of strontium and ruthenium with the chemical formula Sr2RuO4. It was the first reported perovskite superconductor that did not contain copper. Strontium ruthenate is struct ..., Sr2RuO4, a perovskite superconductor that does not contain copper. {{set index Strontium compounds Ruthenium(IV) compounds Transition metal oxides ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monostrontium Ruthenate
Monostrontium ruthenate is the inorganic compound with the formula SrRuO3. It is one of two main strontium ruthenates, the other having the formula Sr2RuO4. SrRuO3 is a ferromagnetic. It has a perovskite structure A perovskite is any material with a crystal structure following the formula ABX3, which was first discovered as the mineral called perovskite, which consists of calcium titanium oxide (CaTiO3). The mineral was first discovered in the Ural mou ... as do many complex metal oxides with the ABO3 formula. The Ru4+ ions occupy the octahedral sites and the larger Sr2+ ions are distorted 12-coordinate. References {{Ruthenium compounds Strontium compounds Ruthenates Transition metal oxides Ferromagnetic materials Perovskites ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distrontium Ruthenate
Distrontium ruthenate, also known as strontium ruthenate, is an oxide of strontium and ruthenium with the chemical formula Sr2RuO4. It was the first reported perovskite superconductor that did not contain copper. Strontium ruthenate is structurally very similar to the high-temperature cuprate superconductors, and in particular, is almost identical to the lanthanum doped superconductor (La, Sr)2CuO4. However, the transition temperature for the superconducting phase transition is 0.93 K (about 1.5 K for the best sample), which is much lower than the corresponding value for cuprates. Superconductivity Superconductivity in SRO was first observed by Yoshiteru Maeno et al. Unlike the cuprate superconductors, SRO displays superconductivity in the absence of doping. The superconducting order parameter in SRO exhibits signatures of time-reversal symmetry breaking, and hence, it can be classified as an unconventional superconductor. Sr2RuO4 is believed to be a fairly two-dimensio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strontium Compounds
Strontium is the chemical element with the symbol Sr and atomic number 38. An alkaline earth metal, strontium is a soft silver-white yellowish metallic element that is highly chemically reactive. The metal forms a dark oxide layer when it is exposed to air. Strontium has physical and chemical properties similar to those of its two vertical neighbors in the periodic table, calcium and barium. It occurs naturally mainly in the minerals celestine and strontianite, and is mostly mined from these. Both strontium and strontianite are named after Strontian, a village in Scotland near which the mineral was discovered in 1790 by Adair Crawford and William Cruickshank; it was identified as a new element the next year from its crimson-red flame test color. Strontium was first isolated as a metal in 1808 by Humphry Davy using the then newly discovered process of electrolysis. During the 19th century, strontium was mostly used in the production of sugar from sugar beets (see strontian pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruthenium(IV) Compounds
Ruthenium is a chemical element with the symbol Ru and atomic number 44. It is a rare transition metal belonging to the platinum group of the periodic table. Like the other metals of the platinum group, ruthenium is inert to most other chemicals. Russian-born scientist of Baltic-German ancestry Karl Ernst Claus discovered the element in 1844 at Kazan State University and named ruthenium in honor of Russia. Ruthenium is usually found as a minor component of platinum ores; the annual production has risen from about 19 tonnes in 2009Summary. Ruthenium platinum.matthey.com, p. 9 (2009) to some 35.5 tonnes in 2017. Most ruthenium produced is used in wear-resistant electrical contacts and thick-film resistors. A minor application for ruthenium is in platinum |
