Vortex dynamics in nanostructured systems superconductor-superconductor and superconductor-metal of one and two bands

The overarching theme of the thesis are the emergent novel phenomena in two-component superconductors. My advisor in Colombia, Prof. Barba Ortega, has directed my research on two-component superconductors made of one same material, with properties spatially changed by either localized heating or nan...

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Bibliographic Details
Author: González Acosta, Jesús David
Format: doctoral thesis
Status:Versión aceptada para publicación
Publication Date:2018
Country:Colombia
Institution:Universidad Nacional de Colombia
Repository:Repositorio UN
Language:Spanish
OAI Identifier:oai:repositorio.unal.edu.co:unal/63824
Online Access:https://repositorio.unal.edu.co/handle/unal/63824
http://bdigital.unal.edu.co/64383/
Access Level:Open access
Keyword:5 Ciencias naturales y matemáticas / Science
53 Física / Physics
Superconductor
Mesoscopic
Vortex
Magnetization
Mesoscópico
Vórtice
Magnetización
Description
Summary:The overarching theme of the thesis are the emergent novel phenomena in two-component superconductors. My advisor in Colombia, Prof. Barba Ortega, has directed my research on two-component superconductors made of one same material, with properties spatially changed by either localized heating or nanostructuring. My advisor in Belgium, Prof. Milosevic, directed my research on samples made of two distinct superconducting materials, related to very recent experiments, with accompanying development of the theoretical model and the numerical implementation suited for high-performance computing. The principal objective of this thesis is to investigate the behavior of vortex matter under the effect of several configurations of pinning landscape with the inclusion of the enhanced surface, in several cases in this research, by using De Gennes’ boundary condition phenomenological parameter. Its effect is studied upon the vorticity, magnetic induction, Cooper pair density, magnetization and phase of the order parameter as functions of the external applied magnetic field.