Magnetic susceptibility simple metals

The simple.st case arises if Eq. (50) is applied to two metal ions each of spin S = i which produce a spin singlet ground state and a spin triplet of energy 2J above the singlet. The magnetic susceptibility per metal atom is readily calculated by application of Eq. (46) and results as... 

In the case of magnetically coupled systems. Curie relaxation is simply additive as long as the magnetic susceptibility is the sum of the two components. When the magnetic susceptibility is not a simple sum of the components, the magnetic susceptibility contribution of each metal ion should be evaluated. 

The theory of the electronic properties of the simple metals that has been built from simple free-electron theory is extraordinary. It extends to thermal properties such as the specific heat, magnetic properties such as the magnetic susceptibility, and transport properties such as thermal, electrical, thermoelectric, and galvano-magnetic effects. This theory is discussed in standard solid state physios texts (see, for example, Harrison, 1970) and will not be discussed here. As a universal theory for all metals, it is not sensitive to the electronic structure it depends only upon the composition of the metals through simple parameters such as those of Table... 

Fig. 2. Temperature dependence of the magnetic susceptibility x (right scale) and of the field for Pd NMR at fixed Larmor frequency Bo (left scale) for palladium. Similar to Fig. la, the NMR field shift and the susceptibility are proportional. Both are (mainly) caused by the Pauli-type paramagnetism of the d-like conduction electrons. (The temperature dependence is not predicted by the simple free-electron description of the susceptibility in metals.) [Reproduced with permission from Seitchik et al. (16). Copyright 1964 American Physical Society.]...

Pure and Mixed Oxides. The specific heat and magnetic susceptibility of ReOj have been measured and the results shown to agree closely with the corresponding parameters calculated from the free electron model with ReOa behaving as a simple metal. ... 

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