ABSTRACT
In the previous chapter, we were interested in the basic theory of the galvanomagnetic effects. The devices in which these effects take place were of secondary importance: we considered them just as means to study the effects. Now we shall move our attention closer to practical aspects of the galvanomagnetic effects: we shall study the basic properties of Hall plates and magnetoresistors. Recall that a Hall plate is a four-terminal solid-state electron device, similar to that with which Hall discovered his effect [1]; and in principle, a magnetoresistor is a two-terminal version of a Hall plate. We have already met Hall devices in previous chapters (see, for example, figure 3.3).
