منابع مشابه
Pinning phenomena in the Ginzburg-Landau Model of Superconductivity
We study the Ginzburg-Landau energy of superconductors with a term aε modelling the pinning of vortices by impurities in the limit of a large Ginzburg-Landau parameter κ = 1/ε. The function aε is oscillating between 1/2 and 1 with a scale which may tend to 0 as κ tends to infinity. Our aim is to understand that in the large κ limit, stable configurations should correspond to vortices pinned at ...
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We consider novel unusual effects in superconductor-ferromagnet (S/F) structures. In particular we analyze the triplet component (TC) of the condensate generated in those systems.This component is odd in frequency and even in the momentum, which makes it insensitive to non-magnetic impurities. If the exchange field is not homogeneous in the system the triplet component is not destroyed even by ...
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Migration as a human phenomenon has some consequences and repercussions. One of these effects is crime commitment and inducing disturbance in land and national security in immigrants' residence country, in other word, international migration, especially illegal migration, have different penal-security effects. Finding reason that the permeability of borders and increasing illegal traffic, drug ...
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We present a 2+1-dimensional lattice model for the copper oxide superconductors and their parent compounds, in which both the charge and spin degrees of freedom are treated dynamically. The spin-charge coupling parameter is associated to the doping fraction in the cuprates. The model is able to account for the various phases of the cuprates and their properties, not only at low and intermediate...
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ژورنال
عنوان ژورنال: Nature
سال: 1979
ISSN: 0028-0836,1476-4687
DOI: 10.1038/282764b0