Sesquioxide magnetic properties

Electronic stmctures of some sesquioxides were calculated from the special interests on these materials properties. For example, Skorodumova et al. [5] calculated the electronic structure of Ce203 by FP-LMTO method for the purpose of clarifying the role of oxygen-poor Ce203 in catalytic property and its band gap and magnetic property were discussed on the basis of valence-band and core-state... 

Of the sesquioxides perhaps least is known about Ce203. Unless it is completely stoichiometric (and A-form) it can be pyrophoric hence preparation and protection from oxygen during study requires serious attention. Sata and Yoshimura (1968a, b) have prepared this material and have studied its chemical and physical properties including its melting point, thermal expansion, and electrical and magnetic properties. 

The structure and magnetic properties of samarium as the sesquioxide and the metal have been studied by Perakis and Kern (1972). Between 8(1-154 K the magnetic susceptibility of a purified Sm specimen essentially coincided with that for Sm " in monoclinic Sm203. The minimum of x (the magnetic susceptibility) was at about 350 K. 

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