Abstract
The vortex state defined by two characteristic length scales, magnetic penetration depth (λ) and coherence length (ξ), in a layered hexagonal superconductor CaAlSi was probed using muon spin rotation. From preliminary analysis using modified London model, we found that the in-plane λ increases with increasing magnetic field while inter-plane λ is almost independent of magnetic field. The presence of field-induced quasiparticle excitation manifested in the field dependence of λ suggests that CaAlSi has an anisotropic gap structure (nodes/dips or multi-gapped).
Original language | English |
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Pages (from-to) | 2124-2128 |
Number of pages | 5 |
Journal | Journal of Physics and Chemistry of Solids |
Volume | 68 |
Issue number | 11 |
DOIs | |
Publication status | Published - Nov 2007 |
Externally published | Yes |
Keywords
- A. Superconductors
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics