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Hexagonal and square flux line lattices in CeCoIn5

Eskildsen, MR; Dewhurst, CD; Hoogenboom, BW; Petrovic, C; Canfield, PC; (2003) Hexagonal and square flux line lattices in CeCoIn5. PHYS REV LETT , 90 (18) , Article 187001. 10.1103/PhysRevLett.90.187001. Green open access

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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.

Type: Article
Title: Hexagonal and square flux line lattices in CeCoIn5
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.90.187001
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.90.187001
Language: English
Additional information: © 2003 The American Physical Society
Keywords: D-WAVE SUPERCONDUCTORS, VORTEX LATTICE, FIELD, TRANSITION, YBA2CU3O7, SYMMETRY
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/77426
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