• Corpus ID: 145048147

Evidence of quantum vortex fluid in the mixed state of a very weakly pinned a-MoGe thin film

@article{Dutta2019EvidenceOQ,
  title={Evidence of quantum vortex fluid in the mixed state of a very weakly pinned a-MoGe thin film},
  author={Surajit Dutta and Indranil Roy and Soumyajit Mandal and Somak Basistha and John Jesudasan and Vivas Bagwe and Pratap Raychaudhuri},
  journal={arXiv: Superconductivity},
  year={2019}
}
Quantum fluids refer to a class of systems that remain in fluid state down to absolute zero temperature. In this letter, using a combination of magnetotransport and scanning tunneling spectroscopy down to 300 mK, we show that vortices in a very weakly pinned a-MoGe thin film can form a quantum vortex fluid. Under the application of a magnetic field perpendicular to the plane of the film, the vortex state transforms from a vortex solid to a hexatic vortex fluid and eventually to an isotropic… 
Fracton-elasticity duality of two-dimensional superfluid vortex crystals: defect interactions and quantum melting
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