He brought up forbidden supercurrent
Hai-Hu Wen stated in a study that if a superconductor can transfer higher non-dissipative supercurrent
with a higher irreversibility magnetic field, it will have a vantage point for applications.
On some days everything one writes will flow like it's in the hands of a supercurrent
; on others, it's akin to flailing around in a quagmire, or quicksand.
The magnetization process of a bulk superconductor essentially involves the application and removal of a large magnetic field that induces a circulating supercurrent
in the material that flows without resistance, 'trapping' magnetic flux within the material (hence why they are also known as 'trapped field magnets').
An additional reinforcement of this choice comes from the original London brothers' derivation; namely, the supercurrent
is being accelerated under the influence of external electromagnetic fields as if made up of free charged particles.
For three-dimensional objects (sphere or cone) the vortex lines need to intersect the surface perpendicularly in order to cancel the outward supercurrent
The JJ is represented by the supercurrent
One important instance of nonlinear Schrodinger equations (3.1) is the Ginzburg-Landau equation that models supercurrent
density for extreme-type-II superconductors.
Nitta, "Observation of maximum supercurrent
quantization in a superconducting quantum point contact," Physical Review Letters, vol.
When an external field is applied through the superconducting loop, a supercurrent
flows in the loop generating a very high coplanar magnetic field above and below the constriction.
Such a strong diamagnetism, due to the expulsion of magnetic flux by a supercurrent
, is a significant signal of the onset of superconductivity.