Creating The World’s Toughest Obstacle Course for Magnetic Flux Quanta in High-Tc Superconductors

  • Aichner, B. (Invited speaker)
  • Lucas Backmeister (Contributor)
  • Max Karrer (Contributor)
  • Katja Wurster (Contributor)
  • Philipp Alexander Korner (Contributor)
  • Christoph Schmid (Contributor)
  • Sandra Keppert (Contributor)
  • Reinhold Kleiner (Contributor)
  • Johannes D. Pedarnig (Contributor)
  • Edward Goldobin (Contributor)
  • Dieter Koelle (Contributor)
  • Lang, W. (Contributor)

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Description

Controlling the movement of magnetic flux quanta in high-temperature superconductors such as YBa2Cu3O7-δ is essential for most applications. It demands the introduction of artificial defect structures that serve as obstacles for the moving flux quanta.
Using a helium ion microscope's well-controllable focused beam, we create ultra-dense periodic patterns of hills and hollows in the potential landscape in which the vortices move. This artificial nano-scaled obstacle course for magnetic flux-quanta leads to exciting electronic transport effects, such as commensurability effects, magnetic vortex caging and the emergence of an ordered Bose glass phase.
Besides their potential for superconductivity research, these complex pinning landscapes for magnetic flux quanta are an essential step toward low-dissipative superconducting electronics.
Period6 Sep 2023
Event titleJoint Annual Meeting of ÖPG and SPS 2023: Joint Annual Meeting of tha Austrian Physical Society (ÖPG) and the Swiss Physical Society (SPS) 2023
Event typeConference
LocationBasel, SwitzerlandShow on map
Degree of RecognitionInternational

Keywords

  • Helium ion microscope
  • Ion Irradiation
  • high-temperature superconductors
  • Nanostructuring
  • Flux pinning
  • Vortex matching
  • Vortex dynamics
  • Electronic transport measurements
  • Ordered Bose glass

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