منابع مشابه
Transport through superconductor/magnetic dot/superconductor structures
The coupling of two s-wave superconductors through a small magnetic dot is discussed. Assuming that the dot charging energy is small compared to the superconducting gap, Ec D, and that the moment of the dot is classical, we develop a simple theory of transport through the dot. The presence of the magnetic dot will position Andreev bound states within the superconducting gap at energies tunable ...
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Configuration and geometry of bracing systems affect the seismic performance of structures significantly. Recently, the current authors have introduced a new configuration for eccentric bracing of structural frames that may be assumed as the combination of inverted Y-type and rotated K-type EBFs. The resulted braced frame is called EBF-DVL, consisting of two vertical links attached together by ...
متن کاملSuperconductor Cobaltites
Since the discovery of high transition-temperature (high Tc ) superconductivity in layered copper oxides [1], they have held the pole position in the race for achieving higher Tc [2]. In this race many different compounds which contain copper oxide layers has been examined. Although there are reports of Tc s up to 185K for very rare phases of complex compounds like (Sn1.0Pb0.5In0.5)Ba4Tm5Cu7O20...
متن کاملTheory of the Josephson effect in superconductor / ferromagnet / superconductor junctions
To reveal the influence of the exchange interaction on the Josephson effect, the d.c. Josephson current in unconventional-superconductor / ferromagnet / unconventional-superconductor junctions is studied. When the two superconductors have d-wave symmetry, the Josephson current is drastically suppressed with the increase of the exchange interaction. On the other hand, when the two superconductor...
متن کاملWeak-localization-like effects in superconductor–ferromagnet–superconductor structures
We report measurements of the resistance as a function of temperature and magnetic field in structures containing a narrow (∼2 μm) ferromagnetic strip connecting two superconducting films. The low-field magnetoresistance has a general appearance similar to that expected for weak localization, but the magnitude is much too large to be accounted for in terms of this mechanism. In zero field the r...
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ژورنال
عنوان ژورنال: Nature
سال: 1988
ISSN: 0028-0836,1476-4687
DOI: 10.1038/332003d0