Meissner–Ochsenfeld superconducting anomalies in the Be–Ag–F system

We report here observations of sudden drops in the magnetic susceptibility of a large number of samples in the Be–Ag–F system, over the temperatures ranging from 8.5 to 64 K. These magnetic anomalies, strongly reminiscent of the Meissner–Ochsenfeld effect, suggest the presence of superconductivity in a small sample fraction of this fluoroargentate system, a cousin of the oxocuprate High-TC materials.