Abstract

BARBA ORTEGA, JOSÉ JOSÉ  and  RINCON JOYA, MIRYAM. DE GENNES PARAMETER DEPENDENCE ON SUPERCONDUCTING PROPERTIES OF MESOSCOPIC CIRCULAR SECTOR. Dyna rev.fac.nac.minas [online]. 2012, vol.79, n.174, pp.46-50. ISSN 0012-7353.

We implemented an algorithm using the link variable method to solve the time dependent Ginzburg-Landau equation in a superconductor prism with circular geometry. The sample is surrounded by a thin layer of another superconductor at higher critical temperature and submitted to an external magnetic field applied perpendicular to its plane. The boundary condition is taken into account with the de Gennes extrapolation length . We evaluate the magnetization, vorticity, the first, and the third critical thermodynamical fields as functions of the external magnetic field and parameter. We found that for these interfaces, the third critical field and magnetization are largely increased while the first critical field remains practically constant

Keywords : de Gennes parameter; vortex configuration; magnetization.

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