The mutual inductance due to the presence of the sample in a coaxial, cylindrically wound inductance coil, has been observed for gadolinium, terbium and samarium in fields of a few oersteds over the temperature ranges 78 - 310°K, 78 - 235°K and 4.2 - l50°K. This mutual inductance might be referred to as an apparent susceptibility although a direct relationship between this apparent susceptibility and a static susceptibility is neither obvious nor presently calculable.
Hill, Emma Daniels and Spedding, F. H., "Zero field magnetic properties of gadolinium, terbium and samarium" (1960). Ames Laboratory Technical Reports. 37.