Fig. 5
From: Kondo-like behavior in a mixed valent oxypnictide La3Cu4P4O2
Normalized low-temperature resistance of \({\textrm{La}_\textrm{3}\textrm{Cu}_{4}\textrm{P}_{4}\textrm{O}_{2}}\) vs T plotted in log scale. The temperature dependence of resistance below T = 25 K was modeled with two different expressions, taking into account scattering on lattice defects, Fermi liquid behavior and spin-dependent scattering (see text for details). \(\mathrm {T_K}\) and \(\mathrm {T_W}\) indicate Kondo temperature and temperature corresponding to the energy scale of RKKY interaction \(\mathrm {k_B T_W}\), respectively. The experimental data were obtained with the \({ ^{3}\textrm{He}}\) PPMS insert.
