publication . Article . 2010

Direct visualization of the Campbell regime in superconducting stripes

Victor Moshchalkov; Alejandro Silhanek; G. W. Ataklti; R. B. G. Kramer;
Open Access
  • Published: 19 Apr 2010 Journal: Physical Review B, volume 81 (issn: 1098-0121, eissn: 1550-235X, Copyright policy)
  • Publisher: American Physical Society (APS)
  • Country: Belgium
Abstract
A combination of scanning Hall microscopy and scanning ac-susceptibility measurements in superconducting stripes (ribbons) of width w < 10 mu m was used to observe the dimensional phase transitions of the vortex lattice and its stability under alternating fields. At low dc magnetic fields applied perpendicularly to the plane of the stripes, vortices form a one-dimensional chain at the center of the stripes. Above a certain field H*(w), the vortex chain splits in two parallel rows displaced laterally in such a way that a zigzag vortex pattern is observed. By shaking the vortices with an external magnetic ac field and detecting their in-phase motion locally, we ca...
Subjects
arXiv: Condensed Matter::Superconductivity
free text keywords: Electronic, Optical and Magnetic Materials, Condensed Matter Physics, : Physics [Physical, chemical, mathematical & earth Sciences], : Physique [Physique, chimie, mathématiques & sciences de la terre], Pinning force, Vortex, Magnetic flux, Physics, Magnetic field, Superconductivity, Quantization (physics), Dissipation, Fluxon
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