Upper Critical Field and Location of Surface Nucleation of Superconductivity
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چکیده
In this paper we improve the estimate obtained by Lu-Pan on the value of the upper critical field HC3(κ) for a cylindrical superconductor with cross section Ω being an arbitrary 2-dimensional smooth bounded domain. We also show that, when a homogeneous magnetic field is applied along the axis of the cylinder with magnitude of the field close to HC3 , superconductivity nucleates first at the surface of the sample where the curvature of ∂Ω is maximal. §
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تاریخ انتشار 2002