Hexagonal and square flux line lattices in CeCoIn5.
- Eskildsen MR DPMC, University of Geneva, 24 Quai E.-Ansermet, CH-1211 Genève 4, Switzerland. morten.eskildsen@physics.unige.ch
- Dewhurst CD
- Hoogenboom BW
- Petrovic C
- Canfield PC
- 2003-06-06
Published in:
- Physical review letters. - 2003
English
Using small-angle neutron scattering, we have imaged the magnetic flux line lattice (FLL) in the d-wave heavy-fermion superconductor CeCoIn5. At low fields we find a hexagonal FLL. Around 0.6 T this undergoes what is most likely a first-order transition to square symmetry, with the nearest neighbors oriented along the gap node directions. This orientation of the square FLL is consistent with theoretical predictions based on the d-wave order parameter symmetry.
- Language
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- English
- Open access status
- green
- Identifiers
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- DOI 10.1103/PhysRevLett.90.187001
- PMID 12786036
- Persistent URL
- https://sonar.ch/global/documents/10949
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