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

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

Research output: Contribution to journalArticlepeer-review

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 1 2007
Externally publishedYes

Keywords

  • A. Superconductors

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Vortex lattice symmetry in hexagonal superconductor CaAlSi probed by small angle neutron scattering'. Together they form a unique fingerprint.

Cite this