Nodeless superconductivity in the charge density wave superconductor LaPt${}_2$Si${}_2$

Z. Y. Nie, L. C. Yin, A. Thamizhavel +8

We have studied the superconducting gap structure of LaPt${}_2$Si${}_2$ by measuring the temperature dependence of the London penetration depth shift $\Delta \lambda (T)$ and point contact spectros…