Transition elements magnetic properties

An additional problem a moveable muon might create is that its diflfusional path may lead to a lattice defect (most important are impurities and vacancies). Once reached, the muon is likely to be trapped and the pSR signal no longer relates to the bulk properties of the magnet. In rare-earth and actinide materials this is less of a problem than in transition element magnets where Tm tends to be high. 

Evidence other than that of ion-exchange favours the view of the new elements as an inner transition series. The magnetic properties of their ions are very similar to those of the lanthanides whatever range of oxidation states the actinides display, they always have -1-3 as one of them. Moreover, in the lanthanides, the element gado-... 

After a consideration of optical transitions in which MMCT plays a role, and after a characterization of the excited states involved, a short review of mixed-valence compounds and their spectroscopy is in order. For more extended reviews we refer to Refs. [60,97], At least 40 elements of the periodic table form mixed-valence species which are of importance in solid state physics and chemistry, inorganic chemistry, materials science, geology and bioinorganic chemistry. It is usually their colors which are their most striking property (see also above), but they have more intriguing properties, for example electrical and magnetic properties. 

Magnetic Properties of Atomic Clusters of the Transition Elements... 

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