INFLUENCE OF THE PLASTIC DEFORMATION ON THE CHARGE CARRIERS CONVERSION IN HIGH ENTROPY ALLOY AL0.5CoCuCrNiFe

Abstract

In range ~300…77 K the anomalies of the fundamental transfer coefficients of high-entropy Al0.5CoCuCrNiFe alloy, as well as influence of plastic deformation on these anomalies were studied. Both the anomalies themselves and the deformation effects are associated, we believed, with hole↔electron conversion, which changes the ratio of the areas of electron and hole of the Fermi surface sheets. The kinetic data are compared with the temperature behavior of the spontaneous magnetization (Is) of the equiatomic AlCoCuCrNiFe alloy, which contain a set of 3-d ferromagnets in almost the same proportions. Interest in AlCoCuCrNiFe is caused by presence of the anomaly in Is(Т) in the same temperature range where the kinetic features of Al0.5CoCuCrNiFe we observed. The explanation this magnet anomaly was given by the phenomenon of hole↔electron conversion under the assumptions, that i) Is has electronic (Ise) and hole (Ish) components, and ii) the quanta of these components (ise and ish) satisfied the condition ise>ish.