Vortex lattice symmetry in hexagonal superconductor CaAlSi probed by small angle neutron scattering

S. Kuroiwa, Y. Sugiyama, T. Muranaka, H. Kawano-Furukawa, Jun Akimitsu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The small angle neutron scattering diffraction patterns from the flux line lattice state in the layered hexagonal superconductor CaAlSi are observed. Under an applied magnetic field (H) parallel to the crystalline c-axis, a hexagonal vortex structure is observed over the entire temperature/field regions. On the other hand, the vortex configuration under H ∥ a shows an ellipsoidal arrangement of the first-order Bragg peaks due to the anisotropic penetration depth. It was inferred from these results that the vortex state characterized by penetration depth and coherence length in CaAlSi may be described by that of anisotropic uniaxial superconductor using London theory.

Original languageEnglish
Pages (from-to)2129-2132
Number of pages4
JournalJournal of Physics and Chemistry of Solids
Volume68
Issue number11
DOIs
Publication statusPublished - Nov 2007
Externally publishedYes

Fingerprint

Neutron scattering
Superconducting materials
neutron scattering
Vortex flow
vortices
symmetry
penetration
Diffraction patterns
Temperature distribution
temperature distribution
diffraction patterns
Magnetic fields
Fluxes
Crystalline materials
configurations
magnetic fields

Keywords

  • A. Superconductors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Vortex lattice symmetry in hexagonal superconductor CaAlSi probed by small angle neutron scattering. / Kuroiwa, S.; Sugiyama, Y.; Muranaka, T.; Kawano-Furukawa, H.; Akimitsu, Jun.

In: Journal of Physics and Chemistry of Solids, Vol. 68, No. 11, 11.2007, p. 2129-2132.

Research output: Contribution to journalArticle

Kuroiwa, S. ; Sugiyama, Y. ; Muranaka, T. ; Kawano-Furukawa, H. ; Akimitsu, Jun. / Vortex lattice symmetry in hexagonal superconductor CaAlSi probed by small angle neutron scattering. In: Journal of Physics and Chemistry of Solids. 2007 ; Vol. 68, No. 11. pp. 2129-2132.
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