page_title: A15 phases
hierarchical_section_title: A15 phases
caption_attribution_description: Space-filling model of the unit cell of the crystal structure of niobium-tin, Nb3Sn. Colour code: Niobium, Nb: pale blue Tin, Sn: grey Structure by X-ray crystallography from J. Less-Common Metals (1991). 172-174, 358-365. Model constructed in CrystalMaker 8.3. Image generated in Accelrys DS Visualizer.
context_page_description: The A15 phases are series of intermetallic compounds with the chemical formula A₃B and a specific structure. Many of these compounds have superconductivity at around 20 K, which is comparatively high, and remain superconductive in magnetic fields of tens of teslas. This kind of superconductivity is an important area of study as it has several practical applications.
context_section_description: The A15 phases (also known as β-W or Cr₃Si structure types) are series of intermetallic compounds with the chemical formula A₃B (where A is a transition metal and B can be any element) and a specific structure. Many of these compounds have superconductivity at around 20 K (−253 °C; −424 °F), which is comparatively high, and remain superconductive in magnetic fields of tens of teslas (hundreds of kilogauss). This kind of superconductivity (Type-II superconductivity) is an important area of study as it has several practical applications.
caption: Unit cell of the A15 phases of Nb3Sn
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