How magnetic field can transform a superconductor into a Bose metal
arXiv:2005.02491 · doi:10.1088/1367-2630/abbc2b
Abstract
We discuss whether a simple theory of superconducting stripes coupled by Josephson tunneling can describe a metallic transport, once the coherent tunneling of pairs is suppressed by the magnetic field. For a clean system, the conclusion we reached is negative: the excitation spectrum of preformed pairs consists of Landau levels, and once the magnetic field exceeds a critical value, the transport becomes insulating. As a speculation, we suggest that a Bose metal can exist in disordered systems provided that the disorder is strong enough to localize some pairs. Then the coupling between propagating and localized pairs broadens the Landau levels, resulting in a metallic conductivity. Our model respects the particle-hole symmetry, which leads to a zero Hall response. And intriguingly, the resulting anomalous metallic state has no Drude peak and the spectral weight of the cyclotron resonance vanishes at low temperatures.
arXiv comment11 pages, 4 figures
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Cited by in corpus (7)
- Cuprate superconductors as viewed through a striped lens
- Superconductivity from charge order in cuprates
- Magnetic field reveals vanishing Hall response in the normal state of stripe-ordered cuprates
- Structure and dynamics of a pinned vortex liquid in superconducting a-Re_xZr (x ~ 6) thin film
- Topological Doping and Superconductivity in Cuprates: An Experimental Perspective
- Magnetic field induced transition from a vortex liquid to Bose metal in ultrathin a-MoGe thin film
- Two types of superconducting pairs in stripe-ordered LaBaCuO (): evidence from the resistivity measurements