Various modern substances are used in the construction of cryostats and low temperature experiments; but, unfortunately, there exist few systematic measurements of the susceptibility of these now common materials. Further, all previous similar surveys of susceptibility, while have been performed under very limited conditions[1,2,3]. Because of our lab’s frequent use of low frequency magnetic measurements at low temperatures, we desired a more comprehensive knowledge of these common materials’ magnetic properties. To fulfill our need, we conducted this experiment
The contributions to the magnetization measured in the samples include: permanent moments, core and Landau diamagnetism, Pauli paramagnetism, and isolated spin paramagnetism. In order to interpolate our data we fit each set of susceptibility data to a function of the form:
where Bj is the Brillouin function, and a, b, g, and M0 are fit parameters. We set j = 0.5 for most of our samples because the quality of the fit was not greatly affected by varying j. Fit parameter results are shown in the following table.
 G.L. Salinger, J.C. Wheatley, Rev. Sci. Instrum. 32, 872 (1961).
 J.M. Lockhart, R.L. Fagaly, L.W. Lombardo, B. Muhlfelder, Physica B 165 & 166, 147-148(1990).
 R.L. Commander, C.B.P. Finn, J.Phys. E 3, 78(1970).