Abstract
We report on superconducting magnesium diborideMgB2 thinfilms grown on both YSZ and MgO substrates, with two different orientations, namely [110] and [211].MgB2 off-axis growth mode(namely, with the c-axis tilted with respect to the film surface’s normal) is achievable on these substrates.Depending on the type and orientation of the substrate, tilting angle can be varied. As aconsequence of tilted growth, anisotropic transport properties are observed. In very thinfilms, resistance measurements provide an estimate of the resistivity anisotropic ratioρc/ρab, whereρc is the resistivityalong the c axis and ρab is the in-plane resistivity. All these findings clearly demonstrate that tiltedMgB2 films offer new exciting possibilities to both investigate intrinsic fundamental properties ofMgB2 and to explore possible applications in planar superconducting devices.
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