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Abstract
By neutron scattering, we have observed a well-ordered magnetic vortex lattice (VL) in KFe2As2 single crystals. With the field along the c axis, a nearly isotropic hexagonal VL is formed, with no symmetry transitions up to high fields, indicating a small anisotropy of the superconducting state around this axis. This rules out line nodes parallel to the c axis, and thus d-wave or anisotropic s-wave pairing. However, the strong temperature dependence of the signal at T
Original language | English |
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Pages (from-to) | 024507 |
Number of pages | 1 |
Journal | Physical Review B |
Volume | 84 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1 Jul 2011 |
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Dive into the research topics of 'Gap in KFe2As2 studied by small-angle neutron scattering observations of the magnetic vortex lattice'. Together they form a unique fingerprint.Projects
- 1 Finished
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Magnetic Flux Structures and Phase Transitions in Unconventional and Conventional Superconductors
Forgan, T. (Principal Investigator) & Blackburn, E. (Co-Investigator)
Engineering & Physical Science Research Council
1/04/09 → 30/09/12
Project: Research Councils