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Several physical properties of superconductors vary from material to material, such as the critical temperature, the value of the superconducting gap, the critical magnetic field, and the critical current density at which superconductivity is destroyed. On the other hand, there is a class of properties that are independent of the underlying ...
X:Y means material X doped with element Y, T C is the highest reported transition temperature in kelvins and H C is a critical magnetic field in tesla. "BCS" means whether or not the superconductivity is explained within the BCS theory .
An organic superconductor is a synthetic organic compound that exhibits superconductivity at low temperatures.. As of 2007 the highest achieved critical temperature for an organic superconductor at standard pressure is 33 K (−240 °C; −400 °F), observed in the alkali-doped fullerene RbCs 2 C 60.
Type I superconductors: those having just one critical field (H c) and changing abruptly from one state to the other when it is reached.; Type II superconductors: having two critical fields, H c1 and H c2, being a perfect superconductor under the lower critical field (H c1) and leaving completely the superconducting state to a normally conducting state above the upper critical field (H c2 ...
In 1999, Anisimov et al. conjectured superconductivity in nickelates, proposing nickel oxides as direct analogs to the cuprate superconductors. [61] Superconductivity in an infinite-layer nickelate, Nd 0.8 Sr 0.2 NiO 2, was reported at the end of 2019 with a superconducting transition temperature between 9 and 15 K (−264.15 and −258.15 °C).
In such materials, pinning is due to impurities that break the translational symmetry of the CDW with respect to φ. [18] The simplest model treats the pinning as a sine-Gordon potential of the form u ( φ ) = u 0 [1 – cos φ ], while the electric field tilts the periodic pinning potential until the phase can slide over the barrier above the ...
Plot showing superconducting electron density versus depth in normal and superconducting layers with two coherence lengths, and .. Proximity effect or Holm–Meissner effect is a term used in the field of superconductivity to describe phenomena that occur when a superconductor (S) is placed in contact with a "normal" (N) non-superconductor.
The choice of isotope ordinarily has little effect on the electrical properties of a material, but does affect the frequency of lattice vibrations. This effect suggests that superconductivity is related to vibrations of the lattice. This is incorporated into BCS theory, where lattice vibrations yield the binding energy of electrons in a Cooper ...