Stripes of increased diamagnetic susceptibility in underdoped superconducting single crystals: Evidence for an enhanced superfluid density at twin …

B Kalisky, JR Kirtley, JG Analytis, JH Chu… - Physical Review B …, 2010 - APS
Physical Review B—Condensed Matter and Materials Physics, 2010APS
Superconducting quantum interference device microscopy shows stripes of increased
diamagnetic susceptibility in the superconducting state of twinned, orthorhombic,
underdoped crystals of Ba (Fe 1− x Co x) 2 As 2, but not in tetragonal overdoped crystals.
These stripes are consistent with enhanced superfluid density on twin boundaries.
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.
American Physical Society
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