Kondo-like behavior in a mixed valent oxypnictide La₃Cu₄P₄O₂.

ABSTRACT: We have synthesized and characterized the physical properties of a layered, mixed valent oxypnictide [Formula: see text] via magnetization, electrical resistivity, and specific heat measurements. Although [Formula: see text] does not exhibit superconductivity down to T = 0.5 K, it demonstrates an intriguing resistivity minimum observed at [Formula: see text] = 13.7 K. Disappearance of the resistivity minimum under an applied magnetic field of [Formula: see text]H = 9 T together with the negative magnetoresistance at low and positive at high temperatures are observed, which are typical for both Kondo-like spin-dependent scattering and 3D weak localization. We argue that the Kondo scattering is a more plausible explanation due to the low-temperature deviation from the Curie-Weiss law observe

SUBMITTER: Krolak S 

PROVIDER: S-EPMC11868601 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature