Publication | Open Access
Superconductivity up to 35 K in the Iron Platinum Arsenides (CaFe<sub>1−<i>x</i></sub>Pt<sub><i>x</i></sub>As)<sub>10</sub>Pt<sub>4−<i>y</i></sub>As<sub>8</sub> with Layered Structures
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Citations
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2011
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Superconducting MaterialMagnetic PropertiesEngineeringPt DopingChemistryIron Platinum ArsenidesSuperconductivityQuantum MaterialsHigh Tc SuperconductorsIron Arsenide SuperconductorsLow-temperature SuperconductivityMaterials ScienceHigh-tc SuperconductivityPhysicsLayered StructuresPlanar Ptas4/2 SquaresIron-based SuperconductorsTransition Metal ChalcogenidesHigh-temperature SuperconductivityNatural SciencesSurface ScienceCondensed Matter PhysicsApplied PhysicsFunctional Materials
The family of iron arsenide superconductors is expanded by the new iron platinum compounds (CaFe1−xPtxAs10)Pt4−yAs8 with novel crystal structures. Layers of FeAs4/4 tetrahedra and of nearly planar PtAs4/2 squares with (As2)4− dumbbells are stacked in different ways, resulting in polytypes with triclinic or tetragonal symmetry. Superconductivity up to 35 K is induced either by Pt doping of the Fe site or by electron transfer from PtAs to FeAs layers.
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