Stripes of increased diamagnetic susceptibility in underdoped superconducting Ba (Fe 1− x Co x) 2 As 2 single crystals: evidence for an enhanced superfluid density at twin boundaries

B. Kalisky, JR Kirtley, JG Analytis, JH Chu, A Vailionis, IR Fisher, KA Moler

Research output: Contribution to journalArticlepeer-review

Abstract

Superconducting quantum interference device microscopy shows stripes of increased diamagnetic susceptibility in the superconducting state of twinned, orthorhombic, underdoped crystals of Ba(Fe1−xCox)2As2, but not in tetragonal overdoped crystals. These stripes are consistent with enhanced superfluid density on twin boundaries.
Original languageAmerican English
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume81
Issue number18
StatePublished - 2010

Bibliographical note

also in Viewpoint in Physics vol3 41

Also in: Virtual Journal of Applications of Superconductivity, June 1, 2010

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