Field-Induced Quasiparticle Excitation in Ca(Al${}_{0.5}$Si${}_{0.5}$)${}_2$: Evidence for unconventional Superconductivity

S. Kuroiwa, H Takagiwa, M. Yamazawa +5

The temperature ($T$) and magnetic field ($H$) dependence of the magnetic penetration depth, $\lambda (T,H)$, in Ca(Al${}_{0.5}$Si${}_{0.5}$)${}_2$ exhibits significant deviation from that expe…