A proposal to detect vortices above the superconducting transition temperature

Details A proposal to detect vortices above the superconducting transition temperature A proposal to detect vortices above the superconducting transition temperature

2010-05-27

arxiv.org/abs/1005.5168v1

Phys. Rev. B 82, 060506(R) (2010)

Physics

Condensed Matter

Superconductivity

3 pages, 2 figures

Scientific paper

We propose a simple experiment to determine whether vortices persist above the superconducting transition temperature Tc in the pseudogap phase of high temperature cuprate superconductors. This involves using a magnetic dot to stabilize a vortex in a thin cuprate film beneath the dot. We calculate the magnetic field profile as a function of distance from the dot if a vortex is present, and discuss possible measurements that could be done to detect this. Finally, we comment on the temperature range where a stable vortex should be observable.

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