Fig. 2: Low temperature ultrahigh pressure ultrafast QP dynamics of LaH10±δ.
From: Ultrafast dynamics evidence of strong coupling superconductivity in LaH10±δ
a Relative differential reflectivity scanning traces at different temperatures. Both the amplitudes and lifetimes vary with temperature. b Normalized ΔR/R of the data in a clearly manifesting the variation in lifetimes. For clarity, the initial dynamics (from −2 to 18 ps) and the longer-range dynamics (from 18 to 140 ps) are separated by a dashed line. Solid curves: fittings using three-component functions. c Color map of the ΔR/R data in a as a function of both delay time and temperature. Blue curve: temperature-dependent resistance of the LaH10±δ sample during a warming up process. The SC Tc qualitatively exhibited and that from the transport measurement are in line with each other.
