Magnetic materials Pauli paramagnetism

The magnetic susceptibility was found to be field independent for both CogSg and Ni3S2. This indicates the absence of any ferromagnetic impurity. In addition, the susceptibilities for both of these materials are temperature independent, and their respective values of 1.3x10 and 0.6x10" emu/g are consistent with Pauli paramagnetism. 

The main impact of p,SR studies on HF materials is the realization that a pure Fermi-liquid ground state with only Pauli paramagnetism is the exception rather than the rule, even when superconductivity is present. Many systems form weak magnetic states at low temperatures, which in the majority of cases could only be detected by [tSR. This weak magnetic state consists of quasistatic moments on the 4f or 5f ion having extremely low... 

The electrical behavior of a material is dependent on the outermost electrons, which may be localized at specific atomic sites or may be collective. Since localized electrons may carry a spontaneous moment, there is a strong correlation between the electrical and magnetic properties of perovskites. Rare earth perovskites with transition metal ions show widely differing electrical properties. For example, LaNiOs, which contains Ni in the low spin state Ni , and LaTiOs exhibit collective d-electron behavior, showing a metallic conductivity and Pauli paramagnetism (Goodenough and Raccah, 1965 Ganguly and Rao, 1973). 

The platinum material, C gPtFg was essentially non-magnetic, the diamagnetic term approximately cancelling a Pauli-type paramagnetism. 

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