Evidence of s-wave superconductivity in ternary intermetallic La3Pd4Si4

S. V. Taylor, J. F. Landaeta, D. Subero +3

We measured the temperature dependence of the magnetic penetration depth of La3Pd4Si4 down to 0.02 Tc. We observe a temperature-independent behaviour below 0.25 Tc, which is firm e…