iron arsenide

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• iron(II) arsenide — geležies(II) arsenidas statusas T sritis chemija formulė Fe₃As₂ atitikmenys: angl. iron(II) arsenide rus. железа(II) арсенид; железо мышьяковистое ryšiai: sinonimas – trigeležies diarsenidas …   Chemijos terminų aiškinamasis žodynas

• Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …   Universalium

• High-temperature superconductivity — Unsolved problems in physics What causes superconductivity at temperatures above 50 kelvin? High temperature superconductors (abbreviated high Tc or HTS) are materials that have a superconducting transition temperature (Tc) above 30 K… …   Wikipedia

• Lollingite — Lollingite, also known as löllingite is an iron arsenide mineral with formula FeAs2. It is often found associated with arsenopyrite (FeAsS) from which it is hard to distinguish. Cobalt, nickel and sulfur substitute in the structure. The… …   Wikipedia

• Safflorite — is a rare cobalt iron arsenide with formula: (Co,Fe)As2. Pure safflorite would be just CoAs2, but iron is virtually always present. Safflorite is a member of the three way substitution series of arsenides known as the löllingite or lollingite… …   Wikipedia

• Oregonite — Oregonite, Ni2FeAs2 is a nickel iron arsenide mineral first described from Josephine Creek, Oregon, USA. Oregonite crystallises in the hexagonal crystal system and has a Mohs hardness of 5. Occurrence Oregonite is known, apart from its type… …   Wikipedia

• Superconductivity — is a phenomenon occurring in certain materials generally at very low temperatures, characterized by exactly zero electrical resistance and the exclusion of the interior magnetic field (the Meissner effect).The electrical resistivity of a metallic …   Wikipedia

• loellingite — /lel ing uyt /, n. Mineral. löllingite. * * * ▪ mineral       an iron arsenide mineral (FeAs2) that usually occurs with iron and copper sulfides in hydrothermal vein deposits. It typically occurs with impurities of cobalt, nickel, and arsenic as… …   Universalium

• Supraconductivité — Aimant en lévitation magnétique au dessus d un supraconducteur à haute température critique. L expulsion du champ magnétique du matériau supraconducteur (effet Meissner) est responsable de cet effet de lévitation. La supraconductivité (ou… …   Wikipédia en Français

• Speiss — is a molten phase consisting primarily of iron arsenide that is commonly encountered in lead smelting operations.Samans, Carl H. Engineering Metals and their Alloys , 1949 MacMillan] References …   Wikipedia

• löllingite — /lel ing uyt /, n. a mineral, iron arsenide, FeAs2, occurring in steel gray prismatic crystals. Also, loellingite, lollingite. [1840 50; named after Lölling, town in Austria where found; see ITE] * * * …   Universalium