Hexagonal and square flux line lattices in CeCoIn5 |
| |
Authors: | Eskildsen Morten Ring Dewhurst Charles D Hoogenboom Bart W Petrovic Cedomir Canfield Paul C |
| |
Affiliation: | DPMC, University of Geneva, 24 Quai E.-Ansermet, CH-1211 Genève 4, Switzerland. morten.eskildsen@physics.unige.ch |
| |
Abstract: | 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. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|