Little-Parks oscillations in a single ring in the vicinity of the superconductor-insulator transition

@article{Gurovich2015LittleParksOI,
  title={Little-Parks oscillations in a single ring in the vicinity of the superconductor-insulator transition},
  author={Doron Gurovich and Konstantin S. Tikhonov and Diana Mahalu and Dan Shahar},
  journal={Physical Review B},
  year={2015},
  volume={91},
  pages={174505}
}
We present results of measurements obtained from a mesoscopic ring of a highly disordered superconductor. Superimposed on a smooth magnetoresistance background we find periodic oscillations with a period that is independent of the strength of the magnetic field. The period of the oscillations is consistent with charge transport by Cooper pairs. The oscillations persist unabated for more than 90 periods, through the transition to the insulating phase, up to our highest field of 12 T. 

Figures from this paper

Chirality-controlled spontaneous currents in spin-orbit coupled superconducting rings

At a superconductor interface with a ferromagnetic insulator (FI), the FI acts to induce a local exchange field within the S layer, which in the presence of spin-orbit interaction promotes a

The influence of the dimensionality of the system on the realization of unconventional Fulde–Ferrell–Larkin–Ovchinnikov pairing in ultra-cold Fermi gases

  • A. Ptok
  • Physics
    Journal of physics. Condensed matter : an Institute of Physics journal
  • 2017
TLDR
This work investigates the influence of a dimensional crossover (from one dimension (1D) to two dimensions (2D) or three dimensions (3D)) on the stability of the FFLO state in the spin-imbalanced attractive Hubbard model.

References

SHOWING 1-10 OF 28 REFERENCES

Large oscillations of the magnetoresistance in nanopatterned high-temperature superconducting films.

TLDR
Oscillations in the resistance of the loops of La(1.84)Sr(0.16)CuO(4), a high-temperature superconductor that loses its resistance to electric currents when cooled below approximately 38 K, are observed with dimensions down to tens of nanometres.

Conductor Insulator Quantum Phase Transitions

PART I: METAL-INSULATOR TRANSITIONS 1. Introduction to Metal-Insulator Transitions 2. Anderson Localisation 3. Visualizing Critical Correlations near the Metal-Insulator Transition in Ga1??xMnxAs 4.

I and i

TLDR
There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.

§ 19

JETP Letters 33

  • 94
  • 1981

Physical Review Letters 109

  • 167002
  • 2012

Physical Review B 84

  • 064528
  • 2011

Phys

  • Rev. B 89, 035149
  • 2014

Phys

  • Rev. Lett. 65, 927
  • 1990

JETP Lett 31

  • 219
  • 1980