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 |
|---|---|
| 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 1 2007 |
| Externally published | Yes |
Keywords
- A. Superconductors
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
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Kuroiwa, S., Satoh, K. H., Koda, A., Kadono, R., Ohishi, K., Higemoto, W., & Akimitsu, J. (2007). μ SR measurements on the vortex lattice of CaAlSi: Anisotropic response in magnetic penetration depth. Journal of Physics and Chemistry of Solids, 68(11), 2124-2128. https://doi.org/10.1016/j.jpcs.2007.08.048