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Efeito de constrições na dinâmica de vórtices cinemáticos em supercondutores gap-like e gapless
(Universidade Estadual Paulista (Unesp), 2018-02-27)
Nesse trabalho estudou-se a dinâmica e os fatores de formação de vórtices cinemáticos em supercondutores mesoscópicos sem gap (gapless). Os resultados foram comparados com aqueles de um sistema com gap (gap-like). Para ...
Dynamical regimes of kinematic vortices in the resistive state of a mesoscopic superconducting bridge
(2020-10-14)
In this work, we studied the dynamics of the kinematic vortices (kV) in a mesoscopic superconductor under the influence of external applied magnetic fields (H) and transport currents (J tr). A J tr(H) phase diagram is ...
Kinematic vortices induced by defects in gapless superconductors
(2021-12-17)
The generalized time-dependent Ginzburg-Landau (GTDGL) theory was first proposed to describe better gap superconductors and the phenomenon of thermal phase-slips (PSs) in defect-free systems. However, there is a lack of ...
Solução numérica das equações de Ginzburg-Landau dependentes do tempo: aplicações a materiais supercondutores mesoscópicos
(2018-07-23)
In the first part of this work we review the main aspects of classical field theory. Next, we apply this theory to the derivation of the London and Ginzburg-Landau equations. The phenomenological theories of superconductivity ...
Ultra-fast kinematic vortices in mesoscopic superconductors: the effect of the self-field
(2020-12-01)
Within the framework of the generalized time-dependent Ginzburg–Landau equations, we studied the influence of the magnetic self-field induced by the currents inside a superconducting sample driven by an applied transport ...
Ultra‑fast kinematic vortices in mesoscopic superconductors: the effect of the self‑field
(Nature Research, 2020-10-29)
In the present work, we have studied the crossover between type I and type II superconductivity on mesoscopic superconducting thin films by numerically solving the 3D Ginzburg-Landau equations. We determined the dependence ...
Efeitos de campos magnéticos externos e de correntes de transporte na dinâmica de vórtices em uma constrição mesoscópica
(Universidade Estadual Paulista (Unesp), 2017-08-03)
Com o desenvolvimento científico, a fabricação de materiais em escalas nano e submicrométricas tornou-se uma realidade. Nos estudos teóricos e experimentais de materiais supercondutores, tais sistemas são denominados de ...
Molecular gas, kinematics, and OB star formation in the spiral arms of the southern Milky Way
(UNIV CHICAGO PRESS, 2006-04-20)
The rotation curve for the fourth Galactic quadrant within the solar circle is derived from the Columbia University - Universidad de Chile CO (J = 1 -> 0) survey of molecular gas. A new sampling, 4 times denser in longitude ...