Эволюция Магнитных Свойств При Раздельном И Совместном Интеркалировании Диселенида Гафния Атомами Меди И Хрома

Abstract

An analysis of the nature of the change in magnetic properties in the Cr-Cu-HfSe2 system as a result of separate and joint intercalation of hafnium diselenide by chromium and copper atoms is presented. It is shown that a paramagnetic state is formed in three-component systems, which is described by the Curie–Weiss law. In CuxCr0.25HfSe2 compounds, when approximating the temperature dependences of the magnetic susceptibility, the dependence of the effective magnetic moments in magnitude and the Curie-Weiss paramagnetic temperature in magnitude and sign on the temperature range of approximation was noted. When this interval was shifted to higher temperatures, there was a monotonous decrease in the magnitude of the effective magnetic moments and a change in the sign of the paramagnetic Curie-Weiss temperature from negative to positive. To describe this dependence, it is proposed to use alternative models for the formation of the magnetic state.