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In the quest for high critical temperature superconductors (HTCS), a new family of iron-based compounds was discovered in 2008, some of them containing arsenic while others, more recently found, contain selenium or tellurium. Our measurements, performed with a system of this latter type, show a relatively small anisotropy of the critical field Hc2 (above which superconductivity disappears), in contrast to the anisotropy expected from the crystalline structure.
Thesis presented September 15, 2022 by Cécile Yu. PhD thesis available as a pdf file.
CEA is a French government-funded technological research organisation in four main areas: low-carbon energies, defense and security, information technologies and health technologies. A prominent player in the European Research Area, it is involved in setting up collaborative projects with many partners around the world.