Relativistic Fermion on a Ring: Energy Spectrum and Persistent Current
Figure 8
Variation of susceptibility at with respect to (a) mass () for a ring with and (b) ring radius () for . We have used the same units as Figure 2 and susceptibility is measured in units of (Figure 7). In both cases the susceptibility curve cut the -axis at corresponding critical value, that is, at in (a) and at in (b). Both these points corresponds .