Article ID Journal Published Year Pages File Type
1818686 Physica C: Superconductivity and its Applications 2010 4 Pages PDF
Abstract

FeSe0.5Te0.5 thin films with PbO-type structure are successfully grown on MgO(1 0 0) and LaSrAlO4(0 0 1) substrates from FeSe0.5Te0.5 or FeSe0.5Te0.75 polycrystalline targets by pulsed-laser deposition. The film deposited on the MgO substrate (film thickness ∼ 55 nm) shows superconductivity at 10.6 K (onset) and 9.2 K (zero resistivity). On the other hand, the film deposited on the LaSrAlO4 substrate (film thickness ∼ 250 nm) exhibits superconductivity at 5.4 K (onset) and 2.7 K (zero resistivity). This suggests the strong influence of substrate materials and/or the c-axis length to superconducting properties of FeSe0.5Te0.5 thin films.

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Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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