1980
Technology  


A quantized electrical effect is discovered in semiconductors.

In the nineteenth century, the American physicist Edwin Herbert Hall found that a current-carrying material placed in a magnetic field develops a voltage perpendicular to the current. In 1980, the German physicist Klaus von Klitzing discovers that in a semiconductor held at low temperatures, this Hall voltage varies in quantum-sized steps. The result is used in the development of new, highly accurate electrical standards.
Next Event Previous Event Home Search Index Help