Abstract
We report normal and superconducting properties of the Rashba-type noncentrosymmetric compound CaIrSi using single crystalline samples with nearly 100 superconducting volume fraction. The electronic density of states revealed by the hard x-ray photoemission spectroscopy can be well explained by the relativistic first-principles band calculation. This indicates that strong spin-orbit interaction indeed affects the electronic states of this compound. The obtained - phase diagram exhibits only approximately 10 anisotropy, indicating that the superconducting properties are almost three dimensional. Nevertheless, strongly anisotropic vortex pinning is observed.
- Received 21 August 2012
DOI:https://doi.org/10.1103/PhysRevB.86.184510
©2012 American Physical Society