Layered Superconductors
نویسندگان
چکیده
منابع مشابه
Plasma Oscillations in Layered Superconductors
Very soon after publication of the famous BCS work explaining the puzzle of the superconductivity, N.N. Bogolyubov and coworkers [1] have proposed their version of the theory. One of new results they have obtained was the discovery of a collective mode an oscillation of the Cooper pair density with the energy smaller than 2∆. P.W. Anderson has indicated that this collective mode can not be foun...
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The energy of a pointlike vortex is calculated for a layered superconductor with very weak interlayer Josephson coupling. An energy barrier existing near the sample surface is found. Magnetization relaxation due to thermally activated penetration of pointlike vortices and quantum tunnelling of pointlike vortices are considered. An initial avalanche-type decay of magnetization is predicted. Magn...
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Layered singlet paired superconductors with disorder and broken time reversal symmetry are studied, demonstrating a phase diagram with charge-spin separation in transport. In terms of the average intergrain transmission and the interlayer tunneling we find quantum Hall phases with spin Hall coefficients of sigma(spin)(xy)=0,2 separated by a spin metal phase. We identify a spin metal-insulator l...
متن کاملAnomalous Fluxon Properties of Layered Superconductors
Highly anisotropic layered superconductors can be considered as stacks of Josephson junctions (SJJ’s) [1, 2]. The key feature of SJJ’s is mutual coupling of junctions, which can be achieved via magnetic [3, 4], charging [5, 6] or nonequilibrium [7] coupling mechanisms. Properties of SJJ’s can be qualitatively different from that of single Josephson junctions (JJ’s) or anisotropic type-II superc...
متن کاملSurface Josephson plasma waves in layered superconductors.
We predict the existence of surface waves in layered superconductors in the THz frequency range, below the Josephson plasma frequency omega J. This wave propagates along the vacuum-superconductor interface and dampens in both transverse directions out of the surface (i.e., towards the superconductor and towards the vacuum). This is the first prediction of propagating surface waves in any superc...
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ژورنال
عنوان ژورنال: Condensed Matter
سال: 2018
ISSN: 2410-3896
DOI: 10.3390/condmat3010004