Abstract
Superconducting quantum interference device microscopy shows stripes of increased diamagnetic susceptibility in the superconducting state of twinned, orthorhombic, underdoped crystals of , but not in tetragonal overdoped crystals. These stripes are consistent with enhanced superfluid density on twin boundaries.
- Received 11 August 2009
DOI:https://doi.org/10.1103/PhysRevB.81.184513
©2010 American Physical Society
Viewpoint
Modulated superfluid density in an iron-pnictide superconductor
Published 17 May 2010
Measurements with a scanning probe microscope sensitive to micron-scale magnetization variations provide evidence for stripes of enhanced superfluid density at the surface of an iron-pnictide superconductor.
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