Weak Lineal Variation of the Neumann Boundary Conditions in a Superconducting Material
Abstract
Few theoretical studies of the thermodynamics properties in superconductors have been carried out in situations where the sample is in contact with an anisotropic material. Thus, the physical properties of the material in contact with the superconductor could vary in the sample surface. In this contribution are studying the superconducting properties of a Niobium prism with its lateral surfaces in contact with deferent kinds of metallic and/or superconducting materials. Numerically has been modelling an engineering boundary condition or anisotropic frontier via the deGennes penetration length b. The inverse of b vary linearly on the surfaces of the sample as γ=1-δ⁄b (δ is the size of the mesh grid). The second thermodynamic field increase when b<0 is considered and a slowly entry of the magnetic field is observed in the metallic regions of the boundary
- Publication:
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Journal Science and Technology University
- Pub Date:
- January 2015
- Bibcode:
- 2015JSTU...19..155B
- Keywords:
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- deGennes parameter;
- Inhomogeneous surface;
- Superconductor.