Phase-Sensitive Flux-Flow resistivity in Unconventional Superconductors
نویسندگان
چکیده
منابع مشابه
Fractional quantization of the magnetic flux in cylindrical unconventional superconductors.
The magnetic flux threading a conventional superconducting ring is typically quantized in units of Φ0=hc/2e. The factor of 2 in the denominator of Φ0 originates from the existence of two different types of pairing states with minima of the free energy at even and odd multiples of Φ0. Here we show that spatially modulated pairing states exist with energy minima at fractional flux values, in part...
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We investigate flux flow state in the two-gap superconductor in which two s-wave gaps with different amplitudes exist on two separated Fermi surfaces. The flux flow resistivity is obtained based on the Bardeen-Stephen relation and the result agrees well with anomalous field dependence of the flow resistivity recently observed in the two-gap superconductor MgB2. Some typical properties of the vo...
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In this letter we present a simple relation, that allows one to predict the Josephson current between two unconventional superconductors with arbitrary band-structure and pairing symmetry. We illustrate this relation with examples of s-wave and d-wave junctions and show a detailed numerical comparison with the phenomenological Sigrist and Rice relation [1] commonly used to interpret tunneling e...
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We consider a superconducting state with a mixed symmetry order parameter components, e.g. d + is or d + id ′ with d ′ = dxy. We argue for the existence of the new orbital magnetization mode which corresponds to the oscillations of relative phase φ between two components around an equilibrium value of φ = π 2. It is similar to the so called " clapping " mode in superfluid 3 He − A. We estimate ...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2012
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/400/2/022025