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Sm, Samarium

Wikipedia (It is a moderately hard silvery metal that readily oxidizes in air. Being a typical member of the lanthanide series, samarium usually assumes the oxidation state +3. Compounds of samarium(II) are also known, most notably the monoxide SmO, monochalcogenides SmS, SmSe and SmTe, as well as samarium(II) iodide)
It is paramagnetic at room temperature. Susceptibility = 1.278E-3 emu/mol from this table


SmFeO3


Antiferomagnetic with Neel temperature approximately 670 K.
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