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Eskildsen MR, Dewhurst CD, Hoogenboom BW, et al. Hexagonal and square flux line lattices in CeCoIn5. Phys Rev Lett. 2003;90(18):187001doi: 10.1103/PhysRevLett.90.187001.
Eskildsen, M. R., Dewhurst, C. D., Hoogenboom, B. W., Petrovic, C., & Canfield, P. C. (2003). Hexagonal and square flux line lattices in CeCoIn5. Physical review letters, 90(18), 187001. https://doi.org/10.1103/PhysRevLett.90.187001
Eskildsen, Morten Ring, et al. "Hexagonal and square flux line lattices in CeCoIn5." Physical review letters vol. 90,18 (2003): 187001. doi: https://doi.org/10.1103/PhysRevLett.90.187001
Eskildsen MR, Dewhurst CD, Hoogenboom BW, Petrovic C, Canfield PC. Hexagonal and square flux line lattices in CeCoIn5. Phys Rev Lett. 2003 May 09;90(18):187001. doi: 10.1103/PhysRevLett.90.187001. Epub 2003 May 07. PMID: 12786036.
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Phys Rev Lett. 2003 May 09;90(18):187001. doi: 10.1103/PhysRevLett.90.187001. Epub 2003 May 07.

Hexagonal and square flux line lattices in CeCoIn5.

Physical review letters

Morten Ring Eskildsen, Charles D Dewhurst, Bart W Hoogenboom, Cedomir Petrovic, Paul C Canfield

Affiliations

  1. DPMC, University of Geneva, 24 Quai E.-Ansermet, CH-1211 Genève 4, Switzerland. [email protected]

PMID: 12786036 DOI: 10.1103/PhysRevLett.90.187001

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.

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