μ SR measurements on the vortex lattice of CaAlSi: Anisotropic response in magnetic penetration depth

S. Kuroiwa; K. H. Satoh; A. Koda; R. Kadono; K. Ohishi; W. Higemoto; Jun Akimitsu

doi:10.1016/j.jpcs.2007.08.048

μ SR measurements on the vortex lattice of CaAlSi: Anisotropic response in magnetic penetration depth

S. Kuroiwa, K. H. Satoh, A. Koda, R. Kadono, K. Ohishi, W. Higemoto, Jun Akimitsu

Research output: Contribution to journal › Article

2 Citations (Scopus)

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	https://doi.org/10.1016/j.jpcs.2007.08.048
Publication status	Published - Nov 2007
Externally published	Yes

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Keywords

A. Superconductors

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

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

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AU - Ohishi, K.

AU - Higemoto, W.

AU - Akimitsu, Jun

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10.1016/j.jpcs.2007.08.048